Deep-pile Polartec® Thermal Pro® 100% polyester (51% recycled) fleece has extra-long fibers to retain warmth Doubled-Fleece Stand-Up Collar Stand-up collar has doubled fleece for warmth Snap-Closure Front Placket Front placket hides a four-snap closure and is reinforced with nylon Princess Seams and Yoke Yoke and princess seams add contouring and shape Stay-Put Chest Pocket Flap Classic Patagonia chest-pocket flap with stay-put envelope construction Kangaroo Handwarmer Pocket; Straightened Seaming Straightened kangaroo handwarmer pocket modernizes the silhouette Only very light wear around sleeves. I love these fleece pullovers but ended up with too many of them and this color is not the most flattering one on me. Color is like a deep dark teal - somewhere in between blue and green.