Product Description Hit the trail dressed for comfort in the REI Co-op COOLMAX EcoMade Midweight hiking crew socks. They're cushioned, breathable, absorbent and made using yarn from recycled water bottles. REI Co-op COOLMAX EcoMade Midweight Hiking Crew Socks Black XL at REI.com Browse all REI.com deals $17.95 In Stock at REI.com Price verified 2d ago Buy Now at REI.com Secure checkout Easy returns or compare prices Amazon eBay Product Details Brand Rei Co-Op Color Pirate Black Size XL Material Polyester / Polyester Blend Gender unisex MPN 21607 Rei Co-Op