CamelBak Better bottle 0.5 L BPA Free design maintains the durability, clarity and vibrant color of the original Better Bottle Easy sipping and no spilling with our patented Big Bite Valve design. Quick Flip Close allows Big Bite Valve to stay clean when not in use and easily flips back into drinking position. Easy to Clean and dishwasher safe. One hand usage allows you to drink without tipping. (although it's possible if you remove the straw)