Koozam / Yeti Rambler Tumbler Stainless Steel, 30 oz, Keeps Hot or Cold Beverages for Hours, BPA Free, with Stainless Steel Straw Cleaning Cloth, Great for Outdoor, Camping, or Hunting Gift INCREDIBLE QUALITY - superior high stainless steel cup for the wild outdoors, Made of kitchen-grade 18/8 stainless steel YETI Ramblers are advanced personal drink coolers made from 18/8 stainless steel with double-wall vacuum insulation. Rambler Tumblers will keep your soda or mixed drinks cold twice as long as plastic cups, and make an excellent YETI coffee mug. The Rambler Colster locks in the cold of cans and bottles using a heat-mocking Load-and-Lock Gasket Double wall vacuum insulation maximum temperature retention & insulates hands from the cold, Koozam Cloth Included holds ice for up to 24 hours, Keeps it hot works great for hot beverages 18/8 stainless steel strong stainless steel construction, Narrow & tall design fits more cup holders