Designed as part of an integrated system for mountain running. This wind shirt is fast-drying, ultralightweight and breathable; and constructed with Capilene® Cool Lightweight material in the sleeves and hood. Longer sleeves make it possible to tuck in your hands so you can skip bringing gloves. A slim-fit hood provides extra warmth and protection in lieu of a hat, and a DWR (durable water repellent) finish provides some weather resistance. Packs down into the back neck for easy stowability. Fair Trade Certified™ sewn.