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Black Diamond

Mission 55 Backpack

Dedicated, durable pack for alpine cragging, mixed ascents and cold weather expeditions

Ice Tool Carry Strippable Design Abrasion Resistant

Select options

Scales

Carry Comfort

Minimal

Mid

Balanced

Streamlined

Simple

Functional

Weight

Ultralight

Lightweight

Midweight

Product Specifications

Average weight 1.742kg (Small-Medium), 1.833kg (Medium-Large)

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

Material BD "X-rip" 420D nylon body fabric with UTS™ coating

Trusted Opinions

Our experts haven't reviewed this product yet.

Features

• New BD "X-rip" 420D Nylon body fabric with UTS™ coating
• Top-loading, with removable lid, drawcord skirt closure and tuck-away rope strap
• Drawcord skirt provides easy access and keeps out spindrift and light precipitation
• Moisture-wicking redesigned back-panel
• Redesigned Shoulder Strap harness for improved comfort and durability
• Welded front abrasion patch for improved protection against rock, ice and crampon spikes
• New custom metal dogbone ice tool attachment with micro ice-tool PickPockets™ to boost ice-tool security and removable 20mm crampon straps
• Strippable design: removable frame sheet / bivy pad and removable hip belt with fixed webbing belt

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)

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

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

Harness Stretch woven mesh over EVA foam

Product Specifications

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

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

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

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

Harness Stretch woven mesh over EVA foam

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

Mission 55 Backpack

Mutant 52 Mountaineering Climbing Pack