Sea to Summit Ascent Sleeping Bag -1°C Rain Forest Regular
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 the 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.
Highlights
BEST USE: Backpacking
PERFORMANCE: 3 Season
WEIGHT: 1lb 11.6oz | 782g
COMPRESSED VOLUME: 5.5L
LOWER TEMP RATING: 30°F | -1°C
Features
- RDS-certified, 750+ fillpower goose down with a non-PFAS 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-PFAS 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
- Sea to Summit Guarantee is offered for the Lifetime of this product





















Reviews
There are no reviews yet.