We've made sipping easier with the Rambler® Straw Cap for Bottles. Open it, take a sip and close it tightly again to keep moving. It's puncture-resistant, easy to carry (thanks to the TripleHaul™ handle) and fits our wide straw, so you have more to drink with every sip. The straw cap is suitable for all YETI®Rambler® bottles. Use the measurements below to cut the straw according to the size of your bottle.354ml - 11.75cm532ml - 16.8cm760ml - 18.4cm1065ml - 20cmNote: Use the Rambler® Straw Cap for bottles not for hot or carbonated drinks or for storing food or perishables.