100% Cotton 5.3 oz. 100% cotton preshrunk jersey. Seamless collar with Taped neck and shoulders Double-needle stitching with Quarter turned to eliminate center crease Front Sided Design Manufacturer’s Warranty: Beach Open t-shirts are sold exclusively by Best Threads and come with a 30 day guarantee. If you’re not completely satisfied, return your t-shirt for a full refund. This warranty applies only to purchases from Best Threads. Beach Open is a trademark of Wahis, Inc.