Patagonia loves Micro D and Houdini, two materials that are robust, comfortable, and lightweight, and the Patagonia Men's Microdini 1/2 Zip Pullover makes use of both. This pullover layers well and adds a little toasty style wherever you need it. Half-zip fleece pullover with zip-through stand-up collar for warmth Exterior of collar is trimmed with recycled nylon for added wind protection Set-in sleeves provide chafe-free comfort and a wide range of motion Cleanly finished cuffs and hem feel smooth and soft on the skin Zippered, left-chest pocket secures small valuables Elastic binding at cuffs and hem keep cold drafts out Fair Trade Certified sewn, which means the people who made it earned a premium for their labor Manufacturer limited lifetime warranty against defects in materials and workmanship