Imagine that there was a sport bottle with a leak free lid that you can lock open, lock closed, and press a button and control the flow. This lid has it all with the press of a button to lock open or close, and a press lever to control the flow. Double-wall stain and odor resistant durable Eastman Tritan material. Lid is top rack dishwasher safe. BPA Free. Patent Pending 22 Oz.