Cessna Avenue 7951 20879 Gaithersburg United States
https://www.xometry.com
Hon&Guan
1251 S Rockefeller ave unit B 91761 Ontario United States
http://honguan.com
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