Swig Backpack Cooler & Skinny Can Cooler. Durable dual zipper pulls-for easier opening and closing design opens fully to allow for wide access. Exterior is PVC coated polyester shell waterproof punch, resistant, wipeable, and lightweight. Interior height is wine bottle friendly top handles are great for grab and go lifting adjustable shoulder straps include cushion pads for extra comfort and support, magnetic closure on easy access slide pockets secured zipper pocket perfect for storing valuables skinny can cooler holds 12 ounce slim canned beverages keeps drinks cold nine hours. Hot drinks three hours. Stainless steel fits most cupholders. Backpacker cooler 15.5 H 11.5 W 6.5 D capacity 3.5 Gallons/16Liters.