Traditional comfort and value, with an anything but traditional design approach, the Trek Series sleeping bags are what backpackers grab for globe-trotting adventures. Vertical baffles over the chest section ensure the down insulation cannot migrate or shift to the outside of the bag during sleep, creating cold spots. A side block baffle construction maintains the 60/40 fill ratio, keeping more down on the top of the bag for maximum insulation.
Ultra Dry Down UltraDry Down is a PFC-free water-repellant treatment applied to the down used in all Sea to Summit sleeping bags. UltraDry Down retains over 60 % more loft, absorbs 30 % less moisture and dries out 60 % faster when compared to untreated down – which means the down will insulate better even in damp conditions. The treatment also inhibits bacterial growth, making your bag last longer. UltraDry Down treatment is an environmentally friendly application.
Certified 650+ Loft ULTRA-DRY Down provides compressible comfort and excellent insulation
Ultralight materials minimise weight and pack size
Sleeping bag can also be transformed into a blanket
Large zipper channel with anti-snag prevents body heat from escaping
3D sidewall maximizes down insulation
3D hood can be tightened if required
Includes ultra-light Ultra-Sil Compression bag
Zip Coupling: This sleeping bag can be zipped together with other models