Tommee Tippee Superstar Insulated Straw Cup 266ml 12m+ 100% leak and shake-proof: Our unique INTELLIVALVE anti-leak technology guarantees this trainer straw cup is completely leak-proof, even when the cup is turned upside down or shaken Hygienic: The drinking straw is made with BACSHIELD antibacterial technology that reduces bacteria by up to 99.9%* by preventing the growth of unwanted microbes Super soft straw: The soft silicone straw makes drinking easy and is gentle on sensitive gums and flips down between sips to keep it clean. Accredited by the Oral Health Foundation Double wall insulated: The insulatedbase minimises condensation andkeepswatercoolto encourage drinking and keep kids cool while playing Easy clean and BPA-free: Our sippy cups are easy to clean, and steriliser and dishwasher safe. All our products are BPA, BPS, PVC, Phthalate and Nitrosamine free.