BruMate is made with "stress free sips on the go" in mind and this Era Tumbler is no exception. The leakproof U-Turn lid works for both cold and carbonated beverages and utilizes a ColdKey metal straw to minimize the amount of plastic in your drink. The BevGuard technology in this tumbler keeps your ice cold for 24+ hours and the best part, it's cup holder friendly! 100% leakproof U-Turn lid ColdKey stainless steel straw 24+ hours ice cold Rubber grip Comfort grip handle Cup holder friendly base