From high altitude base camps to low down valley floors, over the years the Retro X Jacket has logged time in some spectacularly rugged sites. It has a breathable, windproof barrier sandwiched between cozy Synchilla polyester 86% recycled fleece on the outside and a moisture wicking, 100% polyester brushed mesh lining. Quilted Supplex nylon panels over the shoulders and collar stands spandex binding at cuffs and hem block drafts. Wider back panel at hem creates a more ergonomic fit. A fleece lined collar and protective wind flap prevent the chill from sneaking in. Y Joint sleeves and zippered handwarmer pockets.