Hydro Flask Package Bottle Sling - Medium Easy to carry. Easy to move. Bring along your favorite Hydro Flask bottle and keep it close with our new easy-to-carry sling. Pop in your bottle and spend the day with both hands free. Medium Sling fits 32 and 40 oz wide mouth bottles. Product Benefits 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 Medium size fits 32 and 40 oz wide mouth bottles Five-year warranty Size & Dimensions Diameter: 4" Height: 8.25" Weight: 6.25 oz.