Hydro Flask Large Tag Along Bottle Sling. Bring along your favorite Hydro Flask bottle and keep it close with tge new easy-to-carry sling. Pop in your bottle and spend the day with both hands free. Large size fits 32 and 40 oz wide mouth bottles. Welded webbing and attachment mounts for extra durability. Fully adjustable, stretch-woven, Sliplok shoulder strap. Stretch-woven and bonded side pocket with waterproof zipper for storing essentials. Imported.