Features of the Icebreaker Men's ZoneKnit Long Sleeve Zip Hoodie ZoneKnit - Body mapped knitting Technology creates warmth and ventilation where needed to optimize all-day comfort MerinoFill - Extra warm merino yarn fill provides additional Insulation in crucial Areas for colder conditions 100% Merino - Soft merino fibers that regulate body temperature in all weather conditions and resists odors Insulated hood Raglan sleeve construction for mobility No side seams to prevent friction 2-Way zip Zippered hand pockets Fabric Details 100% Merino Wool