What type of glass are EQUA glass bottles made of?

Our glass bottles are made from the finest quality glass called borosilicate. Our bottles are recyclable, designed, made and hand-assembled in our headquarters in EU. They're resistant to big thermal changes, so it's safe to carry your hot tea or any other hot beverage. The lid is 100% leakproof, made of stainless steel, Tritan, and a silicone ring.