When Thinksport introduced the Thinksport bottle over 10 years ago, most reusable bottles were made of polycarbonate material, which leaches Bisphenol-A (BPA). More recently, it has been shown that aluminum bottles with epoxy liners also leach this harmful chemical. So they first and foremost set out to find a safe material that adhered to our strict chemical policy. All Thinksport bottles are made of 18/8 medical- grade stainless steel. They then went on to design our bottles to be highly functional and great-looking too!

Features:
Double-walled and vacuum-sealed stainless steel - keeps contents hot or cold for hours.
Features a large opening for cleaning and full sized fruits or ice cubes as well as a secondary drinking spout.
Perfect of hot or cold beverages - does not sweat (for cold contents) or burn your hand (for hot contents).