Cold and carbonated beverages with ice.

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

To open the Ü-Turn™ Lid for sipping, align the mode indicator with the 'open' position indicated by the raised notch. To lock, turn and line up the mode indicator on the lid with the 'closed' position on the opposite side.

Yes, both the 30oz and 40oz Era straw tumblers are cup holder friendly, perfect for your morning commute or upcoming road trip.

The Era can keep your beverages, even carbonated ones, cold for 24+ hours depending on how much ice is used and the starting temperature of the beverage. The more ice you use, the longer it will stay cold. To maximize ice-retention we recommend filling your Era with at least 50% ice.

Era lids and silicone straw pieces are only interchangeable between 30oz + 40oz Era sizes, however, be sure to use the correct size stainless steel straw attachment as the 40oz straw is longer than the 30oz.

All parts, including the lid, are top-rack dishwasher safe with two exceptions - Dark Aura and Onyx Leopard colorways (these bottles are hand-wash only, but lids and straws are still top-rack dishwasher safe). Remember to remove the straw lid before washing. To do this, simply turn the mode indicator halfway between the locked and open positions and pull up on the straw center piece for easy cleaning. For hand washing, check out our cleaning essentials kit, or read our full guide on how to clean your tumbler.

To remove the ColdKey™ Straw for cleaning, twist the straw halfway between the open and close positions and pull up on the straw.