IT | EUR
Austria | EUR
Belgium | EUR
Czechia | EUR
Denmark | DKK
France | EUR
Germany | EUR
Luxembourg | EUR
Netherlands | EUR
Norway | NOK
Sweden | SEK
Switzerland | CHF
Highlights
BEST USE: Backpacking
PERFORMANCE: 3 Season
WEIGHT: 1lb 11.6oz | 782g
COMPRESSED VOLUME: 5.5L
LOWER TEMP RATING: 30°F | -1°C
Performance
- Ultralight
- Lightweight
- Midweight
- Ultra Compact
- Compact
- Midsize
- Warm
- Cold
- Extreme Cold
About The Product
Our most versatile sleeping bag available, in colder temperatures you can cinch down the technical hood, zip up the draft-tube protected zippers and allow the 750+ Ultra-Dry Goose Down to keep you warm. In warmer conditions, the Free-Flow Zip system lets you unzip in different configurations for superior ventilation and even open up flat to turn the Ascent sleeping bag into a quilt on the warmest of nights. All of the above make the Ascent a true three-season backcountry bag, one of very few on the market. Close the snaps at the shoulders, open the footbox zipper and wear the Ascent at camp - hardcore adventures don't have to be hard all the time.
Product Features
- RDS-certified, 750+ fillpower goose down with a non-PFC Ultra-Dry Down treatment to stay drier in damp conditions
- Free-Flow Zip System offers excellent temperature regulation and multiple sleeping bag configurations
- Thermally-efficient, more relaxed mummy fit, room in the hood to fit an Aeros pillow and the option to zip couple with a compatible Sea to Summit Women's bag to deliver space for two comes standard
- Lightweight 20D recycled nylon shell with a non-PFC DWR finish to protect against wind and moisture and a 20D recycled nylon liner for greater comfort
- Box baffle construction throughout with vertical baffles in the torso to minimize down shift and maximize the retention of warmth
Shipping & Returns
We use climate-neutral shipping:
DHL GoGreen for orders to Germany, Austria and Czech Republic and
GLS Klima Protect for orders to Belgium, Denmark, France, Italy, the Netherlands, Luxembourg, Sweden, Switzerand and Norway.
All orders received by 12:00 noon on weekdays are usually shipped the same day. Orders received later are usually dispatched the following working day.
Delivery time can take up to 3 working days Germany-wide, 4 working days for orders to AT, BE, CZ, DK, FR, IT, LU, NL & SE and 6 working days for orders to CH & NO and depends on the shipping service provider.
Shipping cost:
- Germany, Austria & France: For orders with a value below 75€ we charge a shipping fee of 4,95€. We do not charge shipping fees for orders with a value over 75€.
- Belgium, Netherlands & Luxembourg: We charge a shipping fee of 9,99€ for all orders.
- Czech Republic & Italy: We charge a shipping fee of 14,99€ for all orders.
- Denmark: We charge a shipping fee of 75 DKK for all orders.
- Norway: We charge a shipping fee of 455 NOK for all orders.
- Sweden: We charge a shipping fee of 219 SEK for all orders.
- Switzerland: We charge a shipping fee of 29 CHF for all orders.
All orders can be returned within 14 days of purchase. However, for the sake of the environment, please make sure to keep returns as low as possible.
Find Locally
Pair it with
Sea to Summit tests its sleeping bags for their temperature rating using the ISO 23537 test protocol. This test gives two key ratings: Lower Limit and Comfort Rating.
Lower Limit: The lowest temperature at which a man should stay warm.
Comfort Rating: The lowest temperature at which a woman should stay warm.
Sea to Summit Women’s-specific sleeping bags are listed using the Comfort Rating. Unisex bags are listed using the Lower Rating. For example, if the bag is rated at Lower Limit of 14°F | -10°C and Comfort rating of 27°F | -3°C, it should keep a woman warm down to 27°F | -3°C and a man warm down to 14°F | -10°C, if they are wearing warm clothes and using a good sleeping pad.
Remember: These ratings are just guidelines. Movement, weather, and your gear setup can all affect how warm you actually stay.
Pro Tip: Think of your sleeping bag, pad, and liner as a system. If you expect 28°F | -2°C weather, choose a sleeping bag rated for 23°F | -5°C, use a sleeping pad with an R-Value of 3 or more, and add a liner for extra warmth.
Ascent Down Sleeping Bag -1°C / Regular
Ascent Down Sleeping Bag -1°C / Regular
- RDS-certified, 750+ fillpower goose down with a non-PFC Ultra-Dry Down treatment to stay drier in damp conditions
- Free-Flow Zip System offers excellent temperature regulation and multiple sleeping bag configurations
- Thermally-efficient, more relaxed mummy fit, room in the hood to fit an Aeros pillow and the option to zip couple with a compatible Sea to Summit Women's bag to deliver space for two comes standard
- Lightweight 20D recycled nylon shell with a non-PFC DWR finish to protect against wind and moisture and a 20D recycled nylon liner for greater comfort
- Box baffle construction throughout with vertical baffles in the torso to minimize down shift and maximize the retention of warmth
Technical Features
750+ Loft Ultra-dry Down
Free Flow Zip
Responsible Down Standard (RDS)
Non-PFAS
Tech specs
-
Best UseBackpacking
-
Comes With40D recycled, bluesign APPROVED nylon compression bag
-
InsulationRDS certified, 750+ non-PFAS Ultra-Dry Down
-
ShapeRelaxed mummy
-
Zip OptionsFree Flow zip system
| -1°C Regular | -1°C Long | -9°C Regular | -9°C Long | |
|---|---|---|---|---|
| Bag Weight | 1lb 11.6oz 782g | 1lb 15oz 897g | 2lbs 4oz 1020g | 2lbs 8.8oz 1157g |
| Compressed Volume | 5.5 L5.5 L | 6.4 L6.4 L | 7.5 L7.5 L | 8.0 L8.0 L |
| Compression Sack | 8 L8 L | 8 L8 L | 13 L13 L | 13 L13 L |
| Fill Weight | 10.6 oz 300 g | 12.1 oz 343 g | 19.0 oz 540 g | 21.8 oz 617 g |
| Fits Up To Height | 6 ft 1 in 185 cm | 6 ft 6 in 198 cm | 6 ft 1 in 185 cm | 6 ft 6 in 198 cm |
| Temperature Rating (ISO Lower Limit) | 30°F -1°C | 30°F -1°C | 15°F -9°C | 15°F -9°C |
| Women's Temp Rating (ISO Comfort) | 38°F 3°C | 38°F 3°C | 29°F -2°C | 29°F -2°C |
Excellent insulation and warmth
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