Women's Ascent Down Sleeping Bag (-9°C)

The Sea to Summit Women’s Ascent Down Sleeping Bag (-9°C) is a versatile three-season bag designed specifically for female backpackers. Featuring 750+ fill power Ultra-Dry goose down and a women’s-specific relaxed mummy shape, it delivers reliable warmth, efficient insulation, and enhanced comfort. The Free-Flow Zip system allows adaptable ventilation for changing backcountry conditions.

Features

• Women’s-specific sleeping bag designed for backpacking and three-season adventures

• RDS-certified 750+ fill power goose down with non-PFC Ultra-Dry Down treatment for moisture resistance

• Free-Flow Zip system enables multiple ventilation options and sleeping configurations

• Fully unzip to use as a quilt in warmer weather

• Women’s-specific fit with narrower shoulders and more room at the hips and knees for side sleeping comfort

• Anatomically shaped footbox improves warmth retention around the feet

• Technical hood can be cinched down for increased warmth in colder temperatures

• Draft-tube protected zippers reduce cold air entry and improve insulation efficiency

• Box baffle construction ensures consistent warmth distribution throughout the bag

• Vertical torso baffles help prevent down shifting and maintain insulation performance

• Lightweight 20D recycled nylon shell with non-PFC DWR finish protects against wind and moisture

• Soft 20D recycled nylon liner improves comfort

• Shoulder snap and footbox zip allow the bag to be worn around camp

• Includes a bluesign APPROVED recycled nylon compression sack