Hydration Capacity: 20 oz (.6 L). CamelBak® Got Your Bak™ Guarantee: If we built it, we'll Bak it™ with our lifetime guarantee.Redesigned cap and bite valve provide faster flow and enhanced durability. Flip, Bite and Sip. No tipping required (though possible: just remove the straw). New, sleek shape fits in the hand and most cup holders. Dishwasher Safe: All parts are top-rack dishwasher safe. Durable and spill-proof.