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Sea to Summit

Ascent -9 Regular Down Sleeping Bag

Designed for comfort and adaptability and suited to a wide range of adventures in cold conditions

Expert Pick Down Filled Water Resistant Lightweight

Scales

Packability

Ultra Compact

Compact

Mid Size

Warmth

Summer

Multi-season

Alpine

Weight

Ultralight

Lightweight

Midweight

Product Specifications

Fill ULTRA-DRY Goose Down 750+ Loft, RDS certified
Average weight 1020g (Regular), 1157g (Long)
Compression 13 Litres (both sizes)
Fill weight 540g (Regular),617g (Long)
Fits to 185cm (Regular), 198cm (Long)
Foot width 59.5cm (Regular), 64.5cm (Long)
Inner 20D recycled polyester with a non-PFC DWR finish
Outer 20D recycled polyester
Shoulder width 78cm (Regular), 84cm (Long)
Temp rating minus 2°C comfort rating woman / minus 9°C Lower comfort rating for men; Temperature rated in accordance with ISO 23537-1:2022

Expert Opinion

If you are looking for a very decent quality sleeping bag that is lightweight but don't want to give up on comfort, the Sea to Summit Ascent range is a fantastic place to look!
Though the shape of the bag still tapers at the bottom, the sleeping bag is much more rectangular than most mummy bags. The Free-Flow zip provides flexibility with temperature adjustment whether you want to use you bag as a quilt, stick your feet out or stick out your arms to read a book. The high quality 750+ down fill allows this bag to remain decently lightweight while still performing in cold temperatures. When going with a higher warmth rating like the -9 it usually means you might be using it on colder, longer nights where comfort will be key to a good sleep. The -9 would be a good choice for someone going on adventures all year long.

Fit Tip: Nice and roomy, good for side sleepers or people who tend to move around in their sleep.

Thais - Bivouac Team Member

Features

Relaxed Mummy Fit: A more relaxed yet tapered mummy fit with high thermal performance
Lightweight 100% recycled 20D nylon shell with a non-PFC DWR finish to protect against wind and moisture and a 20D recycled nylon liner for greater comfort
bluesign®-approved fabrics
750+ Fill Power, RDS-certified, Goose Down with ULTRA-DRY Down treatment for improved water resistance in damp conditions
Free Flow Zip System for reliable, snag-free operation and minimal weight:
- Primary zip: full-length #5 with zip-plow and two sliders
- Secondary zip: 1/2-length #3 with zip-plow and two sliders
- Footbox zip: #5 with two sliders
Vertical chest baffles, horizontal baffles in the lower half and base, box wall baffle construction throughout
Generous fitted hood with two soft touch adjustments and fits a Sea to Summit regular pillow
Fitted front draft collar: scalloped over the neck and oversized at the shoulders
Single, down-filled draft tube along the top of zips
Internal pocket for phone / GPS / valuables
Pairs with women's Sea to Summit bags for a snug double sleeping bag
QuiltLock System allows integration with Sea to Summit quilts
Comes with an Ultra-Sil compression bag and a storage cell

Sea to Summit

Ascent -1 Regular Down Sleeping Bag

Designed for comfort and adaptability and suited to a wide range of adventures

Expert Pick Down Filled Water Resistant Lightweight

Scales

Packability

Ultra Compact

Compact

Mid Size

Warmth

Summer

Multi-season

Alpine

Weight

Ultralight

Lightweight

Midweight

Product Specifications

Fill ULTRA-DRY Goose Down 750+ Loft, RDS certified
Compression 8 Litres (both sizes)
Fill weight 300g (Regular), 343g (Long)
Fits to 185cm (Regular), 198cm (Long)
Foot width 59.5cm (Regular), 64.5cm (Long)
Inner 20D recycled polyester with a non-PFC DWR finish
Outer 20D recycled polyester, 10D nylon hood and footbox
Shoulder width 78cm (Regular), 84cm (Long)
Temp rating 3°C comfort rating woman / minus 1°C Lower comfort rating for men; Temperature rated in accordance with ISO 23537-1:2022

Expert Opinion

The Ascent is a great all rounder sleeping bag is rated to keep you toasty in a light frost. With 750 loft down they are packable enough to throw in your backpack, and also appropriate for car camping adventures. With the ability to open the bag up for use as a blanked, but two zips, one for the footbox, and the other along the side where you can zip the male and female bags together. The hooded bag is roomy with its rectangular shape and internal zip pocket on the inside for overnight storage of small items you want to keep close at hand. The Ascent is a great all rounder sleeping bag is rated to keep you toasty in a light frost. If you are particularly susceptible to the cold, it may be worth pairing with a liner

Fit Tip: N/A

Steph - Bivouac Team Member

Features

Relaxed Mummy Fit: A more relaxed yet tapered mummy fit with high thermal performance
Lightweight 100% recycled 20D nylon shell with a non-PFC DWR finish to protect against wind and moisture and a 20D recycled nylon liner for greater comfort
bluesign®-approved fabrics
750+ Fill Power, RDS-certified, Goose Down with ULTRA-DRY Down treatment for improved water resistance in damp conditions
Free Flow Zip System for reliable, snag-free operation and minimal weight:
- Primary zip: full-length #5 with zip-plow and two sliders
- Secondary zip: 1/2-length #3 with zip-plow and two sliders
- Footbox zip: #5 with two sliders
Vertical chest baffles, horizontal baffles in the lower half and base, box wall baffle construction throughout
Generous fitted hood with two soft touch adjustments and fits a Sea to Summit regular pillow
Fitted front draft collar: scalloped over the neck and oversized at the shoulders
Single, down-filled draft tube along the top of zips
Internal pocket for phone / GPS / valuables
Pairs with women's Sea to Summit bags for a snug double sleeping bag
QuiltLock System allows integration with Sea to Summit quilts
Comes with an Ultra-Sil compression bag and a storage cell

Clearance

Sea to Summit

Camp SI Sleeping Mat

Self-inflating mat; great value, durability and comfort

Inflatable Durable

Scales

No scale data available.

Product Specifications

Fill Polyurethane foam
Average weight 780g (Regular),1020g (Large)
Length 183cm (Regular), 198cm (Large)
Material 75D polyester with extrusion laminated TPU
Rolled size ⌀15.5 x 26cm (Regular), ⌀16.5 x 33cm (Large)
Thickness 3.8cm
Width 51cm (Regular), 64cm (Large)

Expert Opinion

Our experts haven't reviewed this product yet.

Features

Delta™ Core-V™ Technology
Robust and durable 75D polyester with extrusion laminated TPU used on top and base
Small vertical Delta™ Cores™ in body contact areas (shoulders, hips and feet) keep you warmer
Larger vertical Delta™ Cores™ in non-body contact areas reduce the mat's weight and bulk
3.8cm thick
Multi-functional, high flow-rate valve
PillowLock™ attaches your new-generation Aeros™ pillow to your mat, holding it in place for a slip-free sleep