The double-wall vacuum-insulated walls give you a worry-free mind knowing your favorite 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 maintaining the prime temperature of your beverage. The 34oz bottle includes a wide mouth leak-proof 3-finger grip lid. The silicone ring ensures a snug fit to the top of the bottle to retain your beverages' optimal temperature and is easily removable for proper cleaning. The lid is made to easily screw off and on your bottle and its 3-finger design gives it a comfortable feel when carrying it around with you wherever you go. Seasonal Colors (Leon Drop, Peach, Cherry Blossom, Aquamarine) come with a matching color straw cap lid.