Brumate 20oz Dark Aura TumblerSip with confidence in this sleek 20oz Dark Aura tumblerengineered to keep your favorite beverages ice cold for a full day. The secure fitting lid prevents spills while you're out adventuring, and the included ColdKey stainless steel straw adds a touch of sophistication to every drink. BevGuard technology works overtime to maintain that perfect chill, while the thoughtfully designed base slides seamlessly into standard cup holders. Era Tumblers are