This is for a brand new, never worn Nike ACG “Canwell Glacier” Therma-Fit half zip, windproof jacket. 100% polyester Made from super flush fleece, this windproof top is designed to protect from even the air coming off Alaskas Canwell Glacier (from which it takes its name). Cut with plenty of room through the body, it has bungee adjusters in the hem to lock up your fit.