Description of Patagonia Capilene® 2 Crew Made in the USA with 100% recycled materials through the Common Threads Garment Recycling program the open, highly breathable knit and feathery weight of the Patagonia Capilene® 2 Crew shirt provides unhindered airflow, excellent wicking for endurance activities in warm to moderate temperatures, it's also Patagoinia’s fastest-drying Capilene®. Because of its low-bulk design and streamlined fit, Capilene® 2 also acts an excellent layering piece beneath Capilene® 3 or 4 during colder weather. The curvilinear construction provides an updated, fast-forward fit, with seams that won't chafe under a pack or climbing sling. Made of quick-wicking, fast-drying 100% polyester (54% recycled) and Gladiodor™ natural odor control. Utilize as a next-to-skin baselayer beneath heftier Capilene® or Regulator® insulation in cool weather. Features: Knit is open for maximum breathability and moisture-management yet insulative enough for active use on chilly days Flat-seam construction provides clean, finished look with fine thread for "barely there" seaming Self-fabric collar Raglan sleeves eliminate chafing from pack straps Flat-ribbed underarm and side panels are extra-soft and breathable and provide chafe-free mobility Side seams are rolled forward for chafe-free mobility and added comfort under hip belt 4-oz. 100% polyester (54% recycled) with Gladiodor™ natural odor control. 100% recyclable through our Common Threads Garment Recycling Program. 156 g. (5.5 oz.)