Product Description
Imagine arriving at your campsite after a long day of challenging trails and breathtaking vistas. As the temperature drops, the Sea to Summit Ascent AcI is ready to provide the rest you deserve. This sleeping bag is designed for those who don't want to choose between the light weight of a mummy model and the freedom of a rectangular bag. Thanks to its generous cut, you can sleep comfortably on your side or back without feeling restricted, while high-quality insulation ensures heat is retained right where you need it most.
The unique Free-Flow Triple-Zip system offers unprecedented flexibility during your nights away. Whether it's a crisp night in the mountains or a balmy evening in the valley, you control the ventilation yourself. With a half zip on the right side and a full-length zip on the left, you can free your arms to read or drink coffee, or even fold down the entire top like a quilt. The separate foot zip allows you to let in some fresh air just at the bottom, greatly increasing ease of use in changing conditions.
Technically, the Ascent AcI is equipped with 750+ Loft Ultra-Dry Down, an insulation material treated to repel moisture. This is crucial when dealing with condensation or damp environments, as the down retains its loft and insulating value. Vertical baffles across the chest are strategically placed to prevent the down from shifting as you move. This prevents cold spots from forming and ensures heat remains evenly distributed across your body, directly contributing to a deeper and uninterrupted sleep.
The 20D Nylon shell is not only light but also breathable and robust enough for intensive use. The anatomically shaped footbox and the spacious hood with dual cord adjustment work together to minimize heat loss. For those who like to keep extra items safe, there is a handy internal pocket for a phone or flashlight. This sleeping bag combines thoughtful innovation with practical functionality, allowing you to focus entirely on your next adventure.
Brand: Sea to Summit
Model: Ascent AcI
Size: Long (for persons up to 198 cm)
Color: Rain Forest
Shell Material: 20D Nylon
Lining Material: 20D Nylon
Insulation: 750+ Loft Ultra-Dry Down (RDS certified)
Temperature Comfort: 2 degrees Celsius
Temperature Limit: -4 degrees Celsius
Weight: 930 grams
Shape: Tapered Rectangle (Relaxed Mummy)
Zipper: Free-Flow Triple-Zip system
Vertical chest baffles to prevent down migration
Anatomical footbox for optimal insulation
Includes Ultra-Sil compression bag
Features internal security pocket
Zip coupling compatible with women's models
