Combining technical insulation with a sustainable design and a proven concealment pattern, the IceBreaker Stratus MerinoLOFT Long Sleeve Zip is a merino-insulated puffy ideal for cold-weather hunts and winter days on the river. The Stratus features a 100% recycled polyester shell that sheds light weather and an adjustable drawcord hem to seal out frigid gusts. Inside the Stratus, they used their innovative 180gm MerinoLOFT(TM) insulation, which forgoes traditional synthetic fills for a sustainable, water-resistant merino blend (featuring recycled wool content) that provides ample warmth even when wet. Two zippered hand pockets store your calls, flies and other small essentials when you're on the move.Features:Icebreaker MerinoLOFT(TM) technologySecure zippered front hand pocketsCenter front zip with internal storm flapStretch binding at sleeve hemAdjustable drawcord hem to keep cold outInterior cozy cuff for warmth and protectionWhy Icebreaker Merino?The merino is an ancient breed of alpine sheep. Over millions of years they evolved a superfine, highly breathable fleece to protect them from freezing winters and scorching summers.It will do the same for you.