Keep your cool. This soft-sided backpack cooler keeps things cold for 36 hours, holds 36 cans without ice, and is your beach cooler, hiking cooler, picnic cooler-everything cooler. The padded back and straps are comfortable and the materials outdoor durable, so load up and go. Features: 36 hours cold Watertight zipper and welded seams ensure leakproof transport Lightweight cold-retaining technology 600D polyester shell is durable, lightweight and waterproof Padded mesh back panel Padded shoulder straps Compression molded base for unsupported self-standing Woven sternum strap and carry handles Laser cut welded loops easily attach Hydro Flask Dry Storage accessories BPA-Free Specifications: Outside Dimensions: 8.47" L x 18.52" W x 18.12" H Product Weight: 2.63 lb Hydro Flask 20L Day Escape Soft Cooler Backpack