THE BEST KIDS WATER BOTTLE: The Hydro Flask Kids 18 oz vacuum insulated stainless steel water bottle keeps drinks cold for up to 24 hours. The slim shape makes it easy for little hands to hold and fits in most cupholders. With a colorful, easy-to-clean Straw Cap and cute Bottle Boot, it’s the perfect kids water bottle. Ages 3+. 25 HOURS COLD: Double-wall vacuum insulation keeps drinks cold for hours. The insulated water bottle keeps beverages cold for 24 hours. Water and drinks stay cold all day from sun-up to sundown, and the durable stainless steel delivers pure taste. LEAK-RESISTANT: The leak-resistant straw cap with straw on the insulated kids stainless steel water bottle keeps drinks ready to sip. The straw closes shut, and the loop makes the bottle easy to carry. NEW SLIM DESIGN: A new, slimmer bottle design is easy to hold and fits most cupholders. It also includes a fun Bottle Boot for added durability. DISHWASHER SAFE: Easy to use and easy to clean, just toss the lid and bottle into the dishwasher. Designed to keep bright color, being dishwasher safe means your favorite insulated Hydro Flask is ready to go.