The Punisher PTX Cooler Backpack is so versatile and handy, you will wonder how you have managed to live your active lifestyle without it! With a fully-insulated interior liner that's also water-resistant, you can use it as a food and beverage tote or as an all-around activity tote. With a variety of expandable pockets and front-mounted stretch cord, it can accommodate and store items beyond its visual confines. It's compact, comfortable and accommodating… the perfect all-around backpack cooler for people on the go! Measures 17-inches long x 12-inches wide x 4-inches tall.