Stay refreshed all day with the Brumate Nightfall 40oz Era Flip Tumbler. Engineered to lock in coldness for 24+ hours, this tumbler features a convenient flip straw and secure slide seal for spill-free sipping. Its compact base slides effortlessly into cup holders, making it your ideal companion for the road, office, or outdoor pursuits.

Features:

• Leakproof SlideSeal™ lid
• SoftSip™ silicone mouthpiece
• ColdKey™ metal straw 
• Easy carry handle
• Keeps drinks cold 24+ hours
• Cupholder friendly base

Brand: Brumate 

Era Flip Tumblers are 100% leakproof with cold beverages and iced carbonated beverages when in the locked position. Not recommended to be used in the locked position with hot beverages. Using a 50% ice to liquid ratio is recommended when using carbonated beverages with your Era Flip.