The Brumate Frosted Drift 40oz Era Tumbler delivers reliable spill protection you can count on. Advanced BevGuard™ technology keeps beverages at the perfect temperature, while the dependable leakproof lid seals tight against water, carbonated drinks, and more. Includes a reusable ColdKey™ metal straw to minimize plastic consumption, and the compact base fits into standard cup holders for on-the-go convenience.

The detail is very hard to see, but the finish appears frosted - kinda like a frosted glass coming out of a freezer. 

Era Tumblers are 100% leakproof with cold beverages and carbonated beverages with ice when in the locked position. Not recommended for use with hot beverages.

Features:

• Leakproof Ü-Turn™ lid
• Cold key metal straw with SoftSip™ silicone mouthpiece
• Cup-holder friendly
• 24 + hours cold
• Easy on and off lid