This almost-white Heather Gray Flex Cinch Backpack is perfect for all your adventuring needs. It has an exterior pocket to keep your keys and phone in and an interior zip pocket for your earbuds and cards. It includes an interior water bottle holder and has a flat waterproof base so the bag can sit upright all by itself. With a durable yet versatile design, the Flex makes a great companion at the gym or on the go.