600ml matt finishing double-walled stainless steel insulated vacuum Soulful Drink Bottle. A special simple design screw-on lid comes with a bamboo lid panel for engraving and a silicone strap handle. This bottle is BPA-free and will keep your drinks hot for 12 hours or cold for 24 hours so you can enjoy it throughout the day and stay hydrated. This product is not dishwasher safe and handwashing is recommended.