Built for top ruggedness and temperature insulation, the Yeti® Rambler™ Tumbler. This tumbler keeps cold drinks frosty and hot drinks steamy for full enjoyment. Made of durable, kitchen-grade 18/8 stainless steel with double-wall vacuum insulation, this tumbler delivers proven performance in a convenient, handheld design. Designed to fit into standard cupholders, this tumbler keeps ice 2 times longer than plastic tumblers and work just as well with hot beverages. BPA-free construction. Clear lid lets you see how full tumbler is at a glance.