Lifefactory 16-Ounce BPA-Free Glass Water Bottle with Axis Straw Cap and Silicone Sleeve, Cherry Blossom Our glass bottles offer a pure taste with no leaching from plastics or metals Straw pivots on axis to enable easy drinking from a range of angles Cap contains silicone straw that goes directly through silicone valve, so water does not come into contact with plastic while sipping Protective nest covers drinking spout when not in use Leak resistant performance for safe transport (when properly closed) Dual action venting system prevents pressure build up