The Beysis Re-usable Coffee Cup is as functional as it is sleek. Made of high quality, double-walled stainless steel it will keep your coffee hot for 12 hours and your ice tea cold for 24. 
Forget about unreliable spring loaded openings and flip top lids - we've designed a silicone sealed, screw top lid so robust you can throw your cup in your bag without the risk of leaks or spills. 
The Beysis Coffee cup is sturdy, sustainable & stunning