We simplified sipping with the Rambler? Bottle Straw Cap. Just flip it open, take a sip, and close it tight to stay moving. It?s leak-resistant, easy to carry (thanks to the TripleHaul? Handle) and accommodates our wide straw, so you get more drink with every sip.The Straw Cap is compatible with all YETI? Rambler? Bottles. Use the measurements below to cut straw according to your bottle size.12 oz18 oz26 oz36 oz46 oz64 ozPlease note: Do not use the Rambler? Bottle Straw Cap with hot or carbonated beverages or for storage of food or perishables. Learn more about product use and safety on our FAQ page.Please note: 2 x straws are included.