100% leak proof, the Ion8 sports water bottle has a vented, smooth liquid flow for rapid hydration. Concave sides and a soft band on this sports bottle provide a comfortable, slip free grip. These water bottles flip open with one hand, and lock closed for peace of mind when throwing into a bag. This drinking bottle bottle is made from Tritan, it is odour resistant, BPA free, phthalate free, non-toxic, Dishwasher safe and suitable for hot and cold drinks from -10C to 96C. Get supercharged!