Stanley The IceFlow Flip Straw Tumbler - 20 ozStanley The IceFlow Flip Straw Tumbler 20 oz Hit the road to adventure or a high intensity spin class at home. This tumbler ensures that you always have crisp, cold hydration in hand. The ergonomic shape and built in flip straw mean you can sip easily and effortlessly. It snaps tight to stay fully leakproof. Stanleys double wall vacuum insulation keeps your drinks icy cold, and a rotating handle makes it easy to take anywhere. To help you live a