The Under Armour® Draft 24 oz. Bottle with Flip Top is perfect for the avid athlete. It features a locking flip-top lid which can easily be closed with one hand. Made from BPA-free durable Eastman Tritan ™ copolyester the bottle is tough but easy to clean. This Under Armour® branded Thermos® series is handy as the body and lid can be interchanged with any other Under Armour® bottles of the same line.