The double-wall vacuum-insulated walls give you a worry-free mind knowing your beverages are kept icy cold or piping hot for hours. Made of lightweight 18/8 food-grade stainless steel that is non-leaching and will not retain taste or odor. The double-wall technology prevents condensation on the outside for those hot sunny days while keeping the heat within the inner wall so every hot chocolate is as warm as it was coming off the stove. The Kids Collection is made specifically for kids and will keep beverages hot or cold for hours. The 12oz bottle is a perfect size and shape for little ones and the comfortably designed straw lid has an easy handle to hold on to while strolling around the park. Its everything a little one needs to keep them going. The 12oz kids bottle includes a wide mouth leak-proof straw lid. The lid has a silicone ring to ensure a snug fit to the top of the bottle retaining the beverages ideal temperature and is removable for proper cleaning. Additionally keeping it leak-free for any adventure your little gets into.