We've made drinking easy with the Rambler®Bottle Straw Cap. When you need some water (or any cold drink that suits you), all you have to do is open it, take a sip, and close it tight to keep moving. It's leak resistant, easy to carry (thanks to the TripleHaul™ handle), and has a wide straw opening so you can drink more with every sip. Wherever nature takes you, the YETI Straw Lid for Rambler Bottles makes it easy to sip without slowing down. This product is not intended for use with hot or carbonated beverages. The straw lid is compatible with all YETI Rambler bottles. Use the measurements below to cut the straw to the size of your bottle. 12oz - 4 5/8" 18oz - 6 5/8" 26oz - 7 1/4" 36oz - 7 7/8"