Downglow™ 700 InsulationDelivers unequalled compression recovery and an impressive warmth-to-weight ratio. Light as a feather, but highly effective against the harshest cold weather. PackableIt packs into a pouch! Wind Resistant Water Repellent Two Zippered Hand PocketsTake Your Essentials With You, Yet Conveniently Out Of The Way. Slim FitContoured For A Perfect Fit, Slim Fit Is Comfortable Without Clinging.