Keep your water, lemonade, or cocktail ice cold with new and super-cute tumblers from Sam’s Club! The triple wall prevents condensation and insulates your beverage and keeps cold drinks cold for 24 hours and keeps hot drinks hot for 12 hours. Heritage Stainless Steel Tumblers 20oz 2-Pack – in club onlyOnly $14.98 – just $7.49 each! These vacuum-insulated stainless steel kids water bottles are perfect for lunch bags or backpacks! This tumbler keeps drinks cold for 14 hours and the Guardian Anti-Microbial Technology inhibits the growth of any yucky bacteria.