Insulated with high-loft, water-resistant down for excellent warmth and compressibility, the Sea to Summit Trek I 3-season bag has a semi-rectangular shape for a little extra room to shift about.
Insulated with high-loft 650-fill-power duck down for warmth, light weight and compressibility; Ultra-Dry Downª water-repellent treatment protects down from moisture
Ultra-Dry Down is a water-repellent polymer treatment applied to the 650-fill down; Ultra-Dry Down retains 60% more loft and absorbs 30% less moisture than untreated down
With a European Norm (EN) lower-limit rating of 32¡F, it will help keep you warm in mild weather
Shell fabric is constructed of 2D PermaShellª technology, a high-density weave, 33-denier fabric treated with a durable water repellent (DWR) finish
Lining is a breathable, durable 40-denier nylon fabric with a soft touch
Full-length side zipper and foot zipper allow bag to be converted from sleeping bag to a duvet/down comforter; this also allows 2 Sea to Summit bags to be zipped together
2-dimensional hood features drawcord adjustment to cinch and tighten around head; hood is designed to open flat when sleeping bag is used as a duvet/down comforter
Large zippered interior security pocket is great for stowing a few essentials, alleviating middle-of-the-night fumbling and preserving battery performance in cold weather
