it keeps drinks warm for an adequate amount of time. Cons: the design is awful. The cap frequently leaks and gets stuck so it's impossible to open. It is the most poorly designed travel mug lid I've ever had. I've had it less than a year and it's completely unusable now
or they hide/remove negative reviews instead of improving their products. Overall
Stormheart Construction
2714 Arancia Drive 80521 Fort Collins United States