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Osprey

Stratos 36 Men's Tramping Pack

Ventilated, durable pack for comfort on your day or short overnight adventures in the outdoors

Ventilated Carry Raincover

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Scales

Carry Comfort

Minimal

Mid

Balanced

Streamlined

Simple

Functional

Weight

Ultralight

Lightweight

Midweight

Product Specifications

Average weight 1.55kg

Capacity 36 Litres

Dimensions 70 x 34 x 28cm

Harness Padded edgeless design with spacermesh contact surfaces

Material Main: 100D x 210D 100% recycled nylon with honeycomb ripstop, PFAS-free DWR Lining: 210D 100% recycled nylon, PFAS-free DWR Bottom: 420D 100% recycled nylon, PFAS-free DWR Backpanel, harness and hipbelt mesh: 100% recycled polyester Fabrics are bluesign® approved

Trusted Opinions

Our experts haven't reviewed this product yet.

Features

• Load range 4.5-13.6kg
• AirSpeed™ suspension:
  • Injection-molded ladder adjustment system provides 10cm of torso adjustability
  • Supportive mesh trampoline backpanel provides excellent ventilation
  • LightWire™ peripheral frame tensions the backpanel mesh and creates a load support structure
  • Harness:
    • Padded, full-yoke harness features an edgeless design, die-cut airflow channels and breathable spacermesh contact surfaces
    • Load lifters balance the upper pack for optimal weight distribution
    • Adjustable sternum strap with magnetic closure, safety whistle and magnetic bite valve attachment
  • Hipbelt:
    • Mesh-covered, padded hipbelt integrates seamlessly into the mesh backpanel for ultimate comfort
    • Crossbody ErgoPull™ hipbelt system ensures a snug fit for optimal load transfer
    • Two zipped hipbelt pockets keep snacks, phone or other small items handy
  • Top-loading main compartment with cinch closure and top lid
  • Fixed top lid with large compartment and underlid zipped pocket with key clip
  • Internal sleeve with hose routing port and Hydraclip™ for easily hanging hydration reservoir (not included)
  • Large, vertical-zip front stash pocket is perfect for extra layers
  • Front panel lash loops for attaching extra gear
  • Stretch side pockets carry water bottles or other quick-access items
  • Zipped bottom access to separate, collapsible compartment
  • Removable sleeping pad/accessory straps
  • Upper and lower side compression straps stabilise your load
  • Stow-on-the-Go™ trekking pole attachment
  • Ice tool loop with bungee tie-off
  • Included raincover stores in pocket at base of pack
  • Fabrics are bluesign® approved

Osprey

Osprey

Osprey

Atmos AG 50 Men's Tramping Pack

Lightweight, ventilated pack for weekend backpacking and lighter-weight multi-day adventures

AntiGravity™ Suspension Raincover Recycled

Select options

Select options

Select options

Scales

Carry Comfort

Minimal

Mid

Balanced

Streamlined

Simple

Functional

Weight

Ultralight

Lightweight

Midweight

Scales

Carry Comfort

Minimal

Mid

Balanced

Streamlined

Simple

Functional

Weight

Ultralight

Lightweight

Midweight

Scales

Carry Comfort

Minimal

Mid

Balanced

Streamlined

Simple

Functional

Weight

Ultralight

Lightweight

Midweight

Product Specifications

Average weight 1.96kg (Small-Medium), 2.05kg (Large-XL)

Capacity 50 Litres (Small-Medium), 53 Litres (Medium-Large)

Dimensions 81 x 38 x 31cm (Small-Medium) 86 x 38 x 31cm (Large-XL)

Harness AntiGravity

Material Main: 210D recycled honey comb nylon, PFC/PFAS-free DWR Accent: 210D recycled high tenacity nylon, PFC/PFAS-free DWR Bottom: 500D recycled high tenacity nylon, PFC/PFAS-free DWR

Product Specifications

Average weight 1.96kg (Small-Medium), 2.05kg (Large-XL)

Capacity 50 Litres (Small-Medium), 53 Litres (Large-XL)

Dimensions 81 x 38 x 31cm (Small-Medium) 86 x 38 x 31cm (Large-XL)

Harness AntiGravity

Material Main: 210D recycled honey comb nylon, PFC/PFAS-free DWR Accent: 210D recycled high tenacity nylon, PFC/PFAS-free DWR Bottom: 500D recycled high tenacity nylon, PFC/PFAS-free DWR

Product Specifications

Average weight 1.96kg (Small-Medium), 2.05kg (Large-XL)

Capacity 50 Litres (Small-Medium), 53 Litres (Medium-Large)

Dimensions 81 x 38 x 31cm (Small-Medium) 86 x 38 x 31cm (Large-XL)

Harness AntiGravity

Material Main: 210D recycled honey comb nylon, PFC/PFAS-free DWR Accent: 210D recycled high tenacity nylon, PFC/PFAS-free DWR Bottom: 500D recycled high tenacity nylon, PFC/PFAS-free DWR

Trusted Opinions

Staff (1)

Alex Bivouac Team Member

One of, if not, the best fitting harness I've tried on. Hugs the hips really nicely and has enough structure in the hip belt that you don't need to pull it overly tight. Compression straps in every place you could need them and tie on points for overflow of gear and hiking poles or ice axes. Side access zips make it convenient to pull out anything from just about any place inside the pack. Favorite features by far are the front access to the water bottle sleeves or the overflow pocket on the front that makes a great spot for a wet shell jacket.

Fit tip:

Definitely get fitted in store

Trusted Opinions

Staff (1)

Alex Bivouac Team Member

One of, if not, the best fitting harness I've tried on. Hugs the hips really nicely and has enough structure in the hip belt that you don't need to pull it overly tight. Compression straps in every place you could need them and tie on points for overflow of gear and hiking poles or ice axes. Side access zips make it convenient to pull out anything from just about any place inside the pack. Favorite features by far are the front access to the water bottle sleeves or the overflow pocket on the front that makes a great spot for a wet shell jacket.

Fit tip:

Definitely get fitted in store

Trusted Opinions

Staff (1)

Alex Bivouac Team Member

One of, if not, the best fitting harness I've tried on. Hugs the hips really nicely and has enough structure in the hip belt that you don't need to pull it overly tight. Compression straps in every place you could need them and tie on points for overflow of gear and hiking poles or ice axes. Side access zips make it convenient to pull out anything from just about any place inside the pack. Favorite features by far are the front access to the water bottle sleeves or the overflow pocket on the front that makes a great spot for a wet shell jacket.

Fit tip:

Definitely get fitted in store

Trusted Opinions

Staff (1)

Alex Bivouac Team Member

One of, if not, the best fitting harness I've tried on. Hugs the hips really nicely and has enough structure in the hip belt that you don't need to pull it overly tight. Compression straps in every place you could need them and tie on points for overflow of gear and hiking poles or ice axes. Side access zips make it convenient to pull out anything from just about any place inside the pack. Favorite features by far are the front access to the water bottle sleeves or the overflow pocket on the front that makes a great spot for a wet shell jacket.

Fit tip:

Definitely get fitted in store

Trusted Opinions

Staff (1)

Alex Bivouac Team Member

One of, if not, the best fitting harness I've tried on. Hugs the hips really nicely and has enough structure in the hip belt that you don't need to pull it overly tight. Compression straps in every place you could need them and tie on points for overflow of gear and hiking poles or ice axes. Side access zips make it convenient to pull out anything from just about any place inside the pack. Favorite features by far are the front access to the water bottle sleeves or the overflow pocket on the front that makes a great spot for a wet shell jacket.

Fit tip:

Definitely get fitted in store

Trusted Opinions

Staff (1)

Alex Bivouac Team Member

One of, if not, the best fitting harness I've tried on. Hugs the hips really nicely and has enough structure in the hip belt that you don't need to pull it overly tight. Compression straps in every place you could need them and tie on points for overflow of gear and hiking poles or ice axes. Side access zips make it convenient to pull out anything from just about any place inside the pack. Favorite features by far are the front access to the water bottle sleeves or the overflow pocket on the front that makes a great spot for a wet shell jacket.

Fit tip:

Definitely get fitted in store

Features

• Load range 11-16kg
• AntiGravity™ suspension:
  • 4mm powder coated full peripheral frame
  • Easy to access and operate cam-lock torso adjustment system
  • Frame sizing allows for two size per gender fit
• AntiGravity™ backpanel: two-tone spacer mesh adds strength and the silicone print in lumbar zone adds grip for load transfer and comfort
• AntiGravity™ harness: die-cut foam lower and mesh ExoForm wrap upper and Fit-on-the-Fly® adjustment expands the fit range
• Hipbelt:
  • Revolutionary AG system seamlessly extends the tensioned backpanel into the hipbelt
  • Hipbelt overlay is integrated into the frame to ensure consistent load transfer
  • Extendable Custom Fit-on-the-Fly® Hipbelt offers a precise fit for varying waist sizes
  • Incremental length and angle adjustments allow for a fine-tuned fit
  • Crossbody ErgoPull design pulls weight into lumbar when hipbelt is tightened
  • Dual zipped hipbelt pockets
• Curved zip access on each side panel
• Floating top lid with lash points
• Fabric reinforced front shove-it pocket
• Dual upper/lower side compression straps
• Tall dual-access side water bottle pockets
• Zipped sleeping bag compartment with removable divider
• Removable sleeping pad straps
• Dual ice axe loops with upper compression strap capture
• Internal hydration reservoir sleeve with centre back exit port
• Stow-On-The-Go™ trekking pole attachment
• Recycled nylon fabrics are bluesign® approved

Features

• Load range 11-16kg
• AntiGravity™ suspension:
  • 4mm powder coated full peripheral frame
  • Easy to access and operate cam-lock torso adjustment system
  • Frame sizing allows for two size per gender fit
• AntiGravity™ backpanel: two-tone spacer mesh adds strength and the silicone print in lumbar zone adds grip for load transfer and comfort
• AntiGravity™ harness: die-cut foam lower and mesh ExoForm wrap upper and Fit-on-the-Fly® adjustment expands the fit range
• Hipbelt:
  • Revolutionary AG system seamlessly extends the tensioned backpanel into the hipbelt
  • Hipbelt overlay is integrated into the frame to ensure consistent load transfer
  • Extendable Custom Fit-on-the-Fly® Hipbelt offers a precise fit for varying waist sizes
  • Incremental length and angle adjustments allow for a fine-tuned fit
  • Crossbody ErgoPull design pulls weight into lumbar when hipbelt is tightened
  • Dual zipped hipbelt pockets
• Curved zip access on each side panel
• Floating top lid with lash points
• Fabric reinforced front shove-it pocket
• Dual upper/lower side compression straps
• Tall dual-access side water bottle pockets
• Zipped sleeping bag compartment with removable divider
• Removable sleeping pad straps
• Dual ice axe loops with upper compression strap capture
• Internal hydration reservoir sleeve with centre back exit port
• Stow-On-The-Go™ trekking pole attachment
• Recycled nylon fabrics are bluesign® approved

Features

• Load range 11-16kg
• AntiGravity™ suspension:
  • 4mm powder coated full peripheral frame
  • Easy to access and operate cam-lock torso adjustment system
  • Frame sizing allows for two size per gender fit
• AntiGravity™ backpanel: two-tone spacer mesh adds strength and the silicone print in lumbar zone adds grip for load transfer and comfort
• AntiGravity™ harness: die-cut foam lower and mesh ExoForm wrap upper and Fit-on-the-Fly® adjustment expands the fit range
• Hipbelt:
  • Revolutionary AG system seamlessly extends the tensioned backpanel into the hipbelt
  • Hipbelt overlay is integrated into the frame to ensure consistent load transfer
  • Extendable Custom Fit-on-the-Fly® Hipbelt offers a precise fit for varying waist sizes
  • Incremental length and angle adjustments allow for a fine-tuned fit
  • Crossbody ErgoPull design pulls weight into lumbar when hipbelt is tightened
  • Dual zipped hipbelt pockets
• Curved zip access on each side panel
• Floating top lid with lash points
• Fabric reinforced front shove-it pocket
• Dual upper/lower side compression straps
• Tall dual-access side water bottle pockets
• Zipped sleeping bag compartment with removable divider
• Removable sleeping pad straps
• Dual ice axe loops with upper compression strap capture
• Internal hydration reservoir sleeve with centre back exit port
• Stow-On-The-Go™ trekking pole attachment
• Recycled nylon fabrics are bluesign® approved

Osprey

Sirrus 36 Women's Tramping Pack

A women's-specific pack for day and short overnight adventures with organisation, a ventilated backpanel and included raincover

Adjustable Fit Raincover Rugged

Add to cart Adding... Sold out

Scales

Carry Comfort

Minimal

Mid

Balanced

Streamlined

Simple

Functional

Weight

Ultralight

Lightweight

Midweight

Product Specifications

Average weight 1.49kg

Capacity 36 Litres

Dimensions 65 x 34 x 33cm

Harness Padded spacermesh

Material Main: 100D x 210D 100% recycled nylon with honeycomb ripstop, DWR treatment made without PFAS Lining: 210D 100% recycled nylon, DWR treatment made without PFAS Bottom: 420D 100% recycled nylon, DWR treatment made without PFAS Mesh: 100% recycled polyester All are bluesign® approved

Trusted Opinions

Staff (1)

H

Holly Bivouac Team Member

Perfect all-rounder. I’d recommend this bag to anyone looking for a larger volume day bag, an ultralight overnight mission, or even for a longer thru hike like the Camino. If you’re carrying minimal gear, say: sleeping bag, change of clothes, 2-3 days food, and some rain gear etc, this pack is an awesome option for staying in Serviced Huts and carrying light. If you like to carry what some call the “luxury items” eg. pillows, several days clothes; or require more gear like tent/sleeping bag/gas cooker, go for a slightly larger volume bag. The back panel is super breathable, awesome for those scorcher summer days, and adjustable to get the right fit. The only thing I don’t love about this bag is that the sleeping bag compartment is sewn in, so you can’t get a pack liner all the way down and will need to use a separate dry bag for this area of the pack if you like to use both a pack liner and rain cover. While a women's pack, the frame is quite tall and narrow - some women find that it's quite narrow/stiff and doesn't fit wider hips as well.

Fit tip:

Narrow/tall frame - may be high behind the head on shorter torsos or too narrow for wider set hips

Trusted Opinions

Staff (1)

H

Holly Bivouac Team Member

Perfect all-rounder. I’d recommend this bag to anyone looking for a larger volume day bag, an ultralight overnight mission, or even for a longer thru hike like the Camino. If you’re carrying minimal gear, say: sleeping bag, change of clothes, 2-3 days food, and some rain gear etc, this pack is an awesome option for staying in Serviced Huts and carrying light. If you like to carry what some call the “luxury items” eg. pillows, several days clothes; or require more gear like tent/sleeping bag/gas cooker, go for a slightly larger volume bag. The back panel is super breathable, awesome for those scorcher summer days, and adjustable to get the right fit. The only thing I don’t love about this bag is that the sleeping bag compartment is sewn in, so you can’t get a pack liner all the way down and will need to use a separate dry bag for this area of the pack if you like to use both a pack liner and rain cover. While a women's pack, the frame is quite tall and narrow - some women find that it's quite narrow/stiff and doesn't fit wider hips as well.

Fit tip:

Narrow/tall frame - may be high behind the head on shorter torsos or too narrow for wider set hips

Features

• Load range: 4.5-13.6kg
• Fixed torso length 38 - 48cm
• AirSpeed™ suspension: supportive mesh trampoline backpanel provides excellent ventilation and the LightWire™ peripheral frame tensions the backpanel mesh and creates load support structure
• Padded, full-yoke harness featuring
  • Edgeless design, die-cut airflow channels and breathable spacermesh contact surfaces
  • Load lifters balance upper pack for optimal weight distribution
  • Adjustable sternum strap with magnetic closure, safety whistle and magnetic bite valve attachment
• Mesh-covered padded hipbelt integrates seamlessly into the mesh backpanel for ultimate comfort with Crossbody ErgoPull™ system to ensure a snug fit for optimal load transfer and two zipped pockets for keeping small necessities to hand
• Top-loading main compartment with cinch closure and top lid
• Zipped bottom access to separate, collapsible compartment
• Fixed top lid with large compartment and underlid zipped pocket with key clip
• Large, vertical-zip front stash pocket is perfect for extra layers
• Stretch side pockets for water bottles or other quick-access items
• Upper and lower side compression straps to stabilise your load
• Ice tool loop with bungee tie-off
• Stow-on-the-Go™ trekking pole attachment
• Front panel lash loops for attaching extra gear
• Internal sleeve with hose routing port and Hydraclip for easily hanging hydration reservoir (reservoir not included)
• Removable sleeping pad/accessory straps
• Raincover included in a pocket at the base of the pack
• This product meets bluesign® PRODUCT requirement, which means materials and components have been selected that adhere to rigorous environmental and social criteria during production

Osprey

Osprey

Mutant 52 Mountaineering Climbing Pack

Provides comfort and stability on alpine rock and ice adventures when you need a pack up for the challenge

Fit for Safety & Stability 3-Point Haul System Ski Carry

Select options

Select options

Scales

Carry Comfort

Minimal

Mid

Balanced

Streamlined

Simple

Functional

Weight

Ultralight

Lightweight

Midweight

Scales

Carry Comfort

Minimal

Mid

Balanced

Streamlined

Simple

Functional

Weight

Ultralight

Lightweight

Midweight

Product Specifications

Average weight 1.462kg (Small-Medium) 1.542kg (Medium-Large)

Capacity 50 Litres (Small-Medium), 52 Litres (Medium-Large)

Dimensions 71 x 35 x 30cm (Small-Medium) 76 x 35 x 30cm (Medium-Large)

Harness Stretch woven mesh over EVA foam

Material Main: 210D 100% recycled high tenacity nylon, PFAS-free DWR Lining: 210D 100% recycled nylon, PFAS-free DWR Bottom: 450D recycled nylon Fabrics are bluesign® approved

Product Specifications

Average weight 1.462kg (Small-Medium) 1.542kg (Medium-Large)

Capacity 50 Litres (Small-Medium), 52 Litres (Medium-Large)

Dimensions 71 x 35 x 30cm (Small-Medium) 76 x 35 x 30cm (Medium-Large)

Harness Stretch woven mesh over EVA foam

Material Main: 210D recycled high tenacity nylon, PFAS-free DWR Accent: 210D recycled nylon grid NanoFly®, PFAS-free DWR Bottom: 450D recycled polyester, PFAS-free DWR

Trusted Opinions

Staff (2)

Thais Bivouac Team Member

This alpine pack is great for longer mountaineering/climbing/ski touring adventures. The harness is decently comfortable, keeping the pack close to your back. The pack is fully featured with an integrated helmet cover, glove friendly buckles, a frame ski carry. rope carry options, removable top lid, ice tool attachments and gear loops. This is not the lightest alpine pack out there, but it is durable and reliable for any alpine adventure.

View 1 more staff opinion

Trusted Opinions

Staff (2)

Thais Bivouac Team Member

This alpine pack is great for longer mountaineering/climbing/ski touring adventures. The harness is decently comfortable, keeping the pack close to your back. The pack is fully featured with an integrated helmet cover, glove friendly buckles, a frame ski carry. rope carry options, removable top lid, ice tool attachments and gear loops. This is not the lightest alpine pack out there, but it is durable and reliable for any alpine adventure.

Thais Bivouac Team Member

This alpine pack is great for longer mountaineering/climbing/ski touring adventures. The harness is decently comfortable and carries load well, keeping the pack close to your back. The pack is fully featured with an integrated helmet cover, glove friendly buckles, a frame ski carry. rope carry options, removable top lid, ice tool attachments and gear loops. The 52L has a unique feature that allows you to remove the hip belt fully. This is helpful if you want to switch it for a more lightweight option. This is not the lightest alpine pack out there partially due to its padding which can make it feel a bit less agile, but it remains a durable and reliable pack for alpine adventures.

Fit tip:

Comfortably padded but restrains agility

Trusted Opinions

Staff (2)

Thais Bivouac Team Member

This alpine pack is great for longer mountaineering/climbing/ski touring adventures. The harness is decently comfortable, keeping the pack close to your back. The pack is fully featured with an integrated helmet cover, glove friendly buckles, a frame ski carry. rope carry options, removable top lid, ice tool attachments and gear loops. This is not the lightest alpine pack out there, but it is durable and reliable for any alpine adventure.

View 1 more staff opinion

Trusted Opinions

Staff (2)

Thais Bivouac Team Member

This alpine pack is great for longer mountaineering/climbing/ski touring adventures. The harness is decently comfortable, keeping the pack close to your back. The pack is fully featured with an integrated helmet cover, glove friendly buckles, a frame ski carry. rope carry options, removable top lid, ice tool attachments and gear loops. This is not the lightest alpine pack out there, but it is durable and reliable for any alpine adventure.

Thais Bivouac Team Member

This alpine pack is great for longer mountaineering/climbing/ski touring adventures. The harness is decently comfortable and carries load well, keeping the pack close to your back. The pack is fully featured with an integrated helmet cover, glove friendly buckles, a frame ski carry. rope carry options, removable top lid, ice tool attachments and gear loops. The 52L has a unique feature that allows you to remove the hip belt fully. This is helpful if you want to switch it for a more lightweight option. This is not the lightest alpine pack out there partially due to its padding which can make it feel a bit less agile, but it remains a durable and reliable pack for alpine adventures.

Fit tip:

Comfortably padded but restrains agility

Features

• Load range: 9-23kg
• A narrow profile, close-to-body carry and Osprey's superior fit makes for efficient and ultimately safter movement in the mountains
• Backpanel:
  • Atilon framesheet with dual aluminium stays
  • Snowshed fabric for additional comfort in wet and cold conditions
  • Ridged EVA foam
• Stretch-woven fabric over contoured EVA foam harness and hipbelt
• Adjustable sternum strap with safety whistle
• Dual hipbelt gear loops and ice gear carry attachment
• Removable top lid with zip pocket, FlapJacket™ and stowaway pocket
• Dual ToolLocks™ with bungee tie-offs
• Removable webbing gear attachment straps
• Front panel daisy chain loops, compatible with Voile straps, for additional gear attachment
• Three-point haul system
• Internal hydration sleeve
• Lightweight, glove-friendly buckles
• Rope attachment and internal compression
• Removable, multi-position helmet carry net
• Reinforced A-frame ski carry
• Dual side wand/picket pockets
• Quick release upper and lower compression straps
• Fabrics are bluesign® approved
• Developed and tested by athletes and local guides

Features

• Load range: 9-23kg
• A narrow profile, close-to-body carry and Osprey's superior fit makes for efficient and ultimately safter movement in the mountains
• Backpanel:
  • Atilon framesheet with dual aluminium stays
  • Snowshed fabric for additional comfort in wet and cold conditions
  • Ridged EVA foam
• Stretch-woven fabric over contoured EVA foam harness and hipbelt
• Adjustable sternum strap with safety whistle
• Dual hipbelt gear loops and ice gear carry attachment
• Removable top lid with zip pocket, FlapJacket™ and stowaway pocket
• Dual ToolLocks™ with bungee tie-offs
• Removable webbing gear attachment straps
• Front panel daisy chain loops, compatible with Voile straps, for additional gear attachment
• Three-point haul system
• Internal hydration sleeve
• Lightweight, glove-friendly buckles
• Rope attachment and internal compression
• Removable, multi-position helmet carry net
• Reinforced A-frame ski carry
• Dual side wand/picket pockets
• Quick release upper and lower compression straps
• Developed and tested by athletes and local guides

Stratos 36 Men's Tramping Pack

Atmos AG 50 Men's Tramping Pack

Sirrus 36 Women's Tramping Pack

Mutant 52 Mountaineering Climbing Pack