This neoprene tumbler pouch is perfect for your 40 oz tumbler. Large enough to hold your phone in the exterior pocket and put your keys and cards or cash on the main zippered compartment for safe keeping. Perfect for the gym, practices, beach pool or on-the-go when you want your tumbler, but not much else! Measures approximately 7"x5" and features an exterior pocket and a main zippered compartment. Easily attach to bottle or tumbler using the adjustable strap.