Premium Quality Borosilicate Glass all parts recyclableOur tronco 20oz glass water tumbler is made of premium borosilicate glass which is BPA free and withstand suddent temperature changeThe glass bottle is perfect for every scenarioworking out in the gymat homeor in office Durable And SplashProof The bamboo lid prevents splashes for onthegoThe lid is wrapped with silicone that helps to prevend the lid from moldingThis glass bottles contents NO plastic and absolutely enviromental friendly surely it will become your perfect daily hydrating companion Reusable Straw And Silicone Nozzle the glass cup comes with one stainless steel straw 2 pieces soft silicone tips to assemble on the straw one straw tip is for boba teathe other straw tip is for waterslushiemilkiced coffeesmoothiecold teamilkshakejuiceand more your favorite cold drinks Protective Silicone Sleeve Runway design silicone sleeve while providing antislip ability for better grip you can also see the volume of liquid in the glass cupAll parts are BPA free The sleeve and lid seal are made of foodgrade silicone Fit in car cup holder Dishwasher SafeWide mouth for easy clean up Tumbler is dishwasher safe Hand wash the lid to prevent warping No need to remove silicone sleeve for cleaning