Yeti Rambler Bottle Straw Cap Seafoam. Just flip it open take a sip and close it tight to stay moving. It's leakproof when closed 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. Specifications for Yeti Rambler Bottle Straw Cap: Manufacturer: Yeti Size: One Size Gender: Unisex Age Group: Adults Fabric/Material: Rubber Weight: 1 lb Features of Yeti Rambler Bottle Straw Cap Leakproof when closed Easy to carry Flip-and-sip hydration Package Contents: Yeti Rambler Bottle Straw Cap Yeti 21070160005: Rambler Bottle Straw Cap Seafoam