The eye-catching and colorful Stanley IceFlow Flip Straw Tumblers are made to keep you hydrated with functional style. Ideal for on the go or working out, with an integrated straw for convenient drinking. The double-walled vacuum insulation keeps your drink cold for 12 hours and ice-cold for 48 hours thanks to the leak-proof mechanism. They fit comfortably in the cup holders of your car or bike, as well as treadmills and exercise bikes! With the foldable handle, you can quickly grab and go. The IceFlow tumblers are designed to be easy to clean. Every part of this stainless steel bottle is dishwasher safe.- Food-grade stainless steel, BPA-free- Double-wall vacuum insulation- Leak-proof flip straw- Easy-to-carry handle- Fits car cup holders- Dishwasher safe- 0.89L / 30oz