Klean Kanteen Loop Cap

Appreciate simplicity and function? Meet the leakproof Loop Cap. Klean Kanteen recommend using this cap to transport your drinks safely without drips. Using the handy attachment loop, clip your Kanteen to just about anything. Made from polypropylene (pp#5), which contains no BPA or toxins. Features: - Leakproof. - Improved insulating performance. - Easy to clean. - Attachment loop. - Dishwasher safe. - Green.