Happy Grains 316 Stainless Steel Tumbler – 350ml (Limited 10th Anniversary Edition)

Celebrate Happy Grains' 10th Anniversary with our premium stainless steel tumbler!  

Food-Grade SUS 316 Stainless Steel – safe, corrosion-resistant, used in medical instruments.  

Vacuum Insulated – keeps drinks hot/cold for hours (6h+ temperature retention).  

Seamless Inner Wall– one-piece design, no welding, easier to clean, no residue or smell.

 
Leak-Proof Design– silicone sealing ring prevents spills.  

Comfort Grip – smooth cylindrical body, no fingerprints, easy to hold.  

Portable Leather Strap – soft & durable, comfortable to carry anywhere.  

Perfect for coffee, tea, Happy Grains drinks, and more!