Crafted for adventurous women seeking versatility and comfort, the Sea to Summit Ascent -1°C Down Sleeping Bag Long Celery Green is a standout choice for backcountry travellers. Constructed as a true three-season backcountry bag, it adapts easily from chilly alpine nights to warm summer camping. With a lightweight 20D recycled nylon shell with non-Per- and Polyfluoroalkyl Substances (PFAS) DWR finish and 20D recycled nylon liner, it balances eco-conscious construction with reliable durability and packability. The fill features Responsible Down Standard (RDS) Certified 750+ Ultra-Dry Goose Down, treated with a non-PFAS Ultra-Dry Down treatment for dependable insulation even in damp conditions. A women’s specific fit offers enhanced comfort with wider hips, narrower shoulders, and targeted insulation zones to retain warmth where it’s needed most. The Free-Flow Zip system offers exceptional temperature control, allowing users to vent, convert the bag into a quilt, or even wear it at camp. For added integration, the Quiltlock system secures compatible quilts for greater warmth in cold climates. A spacious anatomical footbox with warmth retention further boosts comfort, especially for side sleepers. The bag comes with a 40D recycled, bluesign approved nylon compression bag, ensuring compact storage without environmental compromise.

Key Features:

• Three-season backcountry bag: Ideal for varied weather conditions from early spring to late autumn.
• Lightweight 20D recycled nylon shell with non-PFAS DWR finish and 20D recycled nylon liner: Combines durability, sustainability and packability.
• RDS Certified 750+ Ultra-Dry Goose Down Insulation: Ethically sourced, high-loft insulation with exceptional warmth-to-weight ratio.
• Non-PFAS Ultra-Dry Down treatment: Provides superior water resistance without harmful chemicals.
• Free-Flow Zip system: For multi-directional ventilation, quilt conversion, and thermal management.
• Quiltlock system: Securely connects quilts for added insulation in freezing conditions.
• Women’s specific fit: Tailored shape improves thermal efficiency and sleeping comfort.
• Anatomical footbox with warmth retention: Designed for natural foot positioning and reduced heat loss.
• Comes with 40D recycled, bluesign approved nylon compression bag: Packs down small while aligning with eco-responsibility.