Hiding in tumbler

A tumbler designed for enthusiasts of bubble tea culture.Patented hidden-straw design, open to drink and close to stay hidden, making it hygienic, and leak-proof.Curved inner structure allows tea and boba to gather beneath the straw, make you enjoy every drop.High-tech equipment invested to achieve vacuum insulation that keeps cold for up to 15 hours, and allows for one-stop manufacturing and QC. It’s part of our effort to maintain the industry within Taiwan.Inner cup made using one-piece stainless steel stamping technic has no weld lines, no more residue buildup issues.With 750ml that ca