revomax twist-free/no-screw tritan water bottle w/leak proof single-handed cap on/off lid, non-toxic & bpa free, 20oz, standard mouth revomax you don’t screw it. it doesn’t screw you. screw-on tops may seem secure, but one wrong move is all it takes to loosen those threads. and when that happens, you’re the one getting screwed. revomax, the winner of if design of 2016, developed the easy-seal cap to solve this problem. with its patent pending double-seal and triple lock cap there is no more leaks. the quickest cap for single-handed use revomax lid is a zipper for water bottles! it is the only lid which can be fully detached or securely locked in less than one second single-handedly! no popping and struggling when holding carbonated beverage every revomax twist-free lid is equipped with an air exhaust valve built into the lid to release the pressure just before the cap is opened to balance the pressure inside and outside of the water bottle, so there is no popping or struggling. no more loose water bottle hung with a carabiner clip revomax tritan water bottle does not depend on screws for sealing and securing, so dangling or twisting will never get your revomax water bottle running away from the carabiner hooked on your backpack. the bottle is made of food grade eastan tritan material, which is often used for baby milk bottles. it is 100% bpa/bps free and a much better and safer material than pp.