Perfect for wearing on its own or as part of a layering system the Patagonia Tough Puff Shirt is a durable and versatile outdoor shirt. With warm and stretch breathable FullRange™ insulation and moisture-shedding, stretch-woven fabric. 100% polyester (46% recycled) outer shell Coated with moisture-shedding DWR (Durable water repellent) finish Stretch insulation for excellent breathability and freedom of movement Stays warm when wet Snap-closures to front Vertical pocket on left chest with zip-closure Snap closures of cuff adjustments Fair Trade Certified™ sewn