The Klean Kanteen TKWide Twist Cap is a handy water bottle for on the go. The bottle is completely leak-proof, so you don't have to worry about leaks in your bag. The Twist Cap contains a straw, and its drinking spout comes out of the cap when twisted. There is a straw in the bottle. So you drink directly through the drinking spout without having to tilt your water bottle. The bottle keeps your cold drink cold for up to 33 hours (with ice). This bottle is not suitable for hot drinks.