#1 PREMIUM QUALITY -  Made only from the Highest Quality Premium 304 18/8 Food Grade Stainless Steel.
#1 SUPERIOR FINISHING INSIDE & OUT – Your tumbler will always feel smooth to the touch with a sweat-free design, An electro-polished interior will ensure your cups remain pure and rust-free, imparting NO unwanted flavors, giving you a clean tasting drink every time!