A slim shape and fortified cap make On-The-Fly ideal for care-free storage in work bags, gym bags, backpacks and cup holders. Opens easily for convenient one-hand refreshment on the fly. Locks to prevent spills. Made in our new Sustain material derived from 50% waste plastic (using ISCC certified mass balance), further offsetting the use of fossil fuels and lowering greenhouse gas emissions. Features: BPA/BPS Free Dishwasher Safe Fits Cupholders Leak-Proof Guarantee Recycled Material