Deep-pile Polartec® Thermal Pro® 100% polyester fleece (51% recycled) has extra-long fibers to retain warmth Stand-up collar has doubled fleece for warmth Front placket hides a four-snap closure and is reinforced with nylon Yoke and princess seams add contouring and shape Classic Patagonia chest-pocket flap with stay-put envelope construction We straightened the kangaroo-style handwarmer pocket to modernize the silhouette Hip length; Fair Trade Certified sewn