Brumate Dune 20oz Era TumblerSay goodbye to spilled drinks and watered down beverages. The Dune 20oz Era Tumbler seals tight with its secure lid while the ColdKey stainless steel straw and BevGuard technology work together to keep ice frozen for a full 24 hours. Its cup holder friendly base makes it the ultimate sidekick for any adventure, whether you're commuting, hiking, or just living your best life on the go. Era Tumblers are 100% leakproof with cold beverages and carbonated