Patagonia Capilene® 4 Crew A low-bulk but highly insulative performance crew base layer ideal for skiing, mountaineering or start-and-stop layering such as alpine climbing in cool to very cold conditions. Be prepared for autumn's unexpected temperature changes in our Capilene® 4 Crew. Its soft knit interior retains heat, while its smooth exterior glides easily under layers. A cozy, rolled-out neckline warms and comforts; panel piecing ensures superior fit, with flat-locked seams for zero irritation. Made from stretchy 100% polyester (50% recycled) with Gladiodor™ natural odor control. 100% recyclable through our Common Threads Garment Recycling Program. Imported. Features: Stretchy comfort and unrestricted mobility with excellent base-layer performance Fabric's unique interior grid structure is warm for its weight, moisture-wicking, and highly compressible without being clingy Smooth jersey face slides easily against overlayers Non-traditional panel piecing assures superior fit, seams are positioned out of the way for zero irritation Crew collar is rolled out for neck comfort plus greater warmth; Forward-set shoulder seams eliminate pack or wader strap rub Extra-soft side panels are stretchy and highly breathable Flat-seam construction with "barely-there" seam stitching provides clean, finished look 5.3-oz. Polartec® Power Dry®: 98% polyester (50% recycled) and 2% spandex, with Gladiodor™ natural odor control. 100% recyclable through our Common Threads Garment Recycling Program. 227 g. (8 oz.)