Hello Kitty Water Bottle Black – Leak-Proof Lid 500 ml. This insulated Hello Kitty water bottle is a fantastic product for any Hello Kitty fan and makes a great gift idea. The stainless steel thermos is perfect for hot drinks in winter to warm you up and for cold drinks on hot days to keep you cool. The bottle features a black design with the adorable Hello Kitty. Additionally, the water bottle is leak-proof, making it ideal for children.