The Nano Puff Bivy Pullover is light, windproof, warm. The water-repellent, compressible 60-g PrimaLoft Gold Insulation Ecowith 55% postconsumer recycled contenthas a superb warmth-to-weight ratio and maintains 98% of its warmth, even when wet. The interlocking fibers of the lightweight, 100% recycled polyester shell and liner fabrics block wind, shed moisture and enhance the DWR (durable water repellent) performance. When the going gets cold(er), the kangaroo-style handwarmer pocket and a close-fitting, under-the-helmet hood with elastic binding bump up the comfort level. The zippered drop-in torso pocket doubles as a stuffsack with a reinforced carabiner clip-in loop. With a deep venting center-front zipper, elastic-bound cuffs and a drawcord-adjustable hem. Fair Trade Certified sewn.