The Patagonia Classic Retro-x Fleece Jacket - Women's is a cozy fleece for the coldest days. Running around town, camping, there isn't any place this fleece won't go. If it's cold, it's ready to provide the warmth. The 1/4" pile fleece is 100% polyester, with a windproof mesh backer for cutting the windiest days. Hang it on the hook, you'll be grabbing it on the way out.