Product details:

Core body protecting windproof shell that packs down to a tiny back pocket friendly size. Using an ultra lightweight windproof ripstop fabric Endura have created a wind vest that can go with you if you need some extra protection in cool, windy conditions. Elasticated cuffs, rear neck and hem keeps the jacket in place and sealed against the elements. A stuff sack is included so you can stow the jacket easily in a pocket.