Hydro Flask Kids 18oz Wide Mouth Bottle

The Hydro Flask Kids 18 oz Bottle with Covered Cap is the newest addition to the kids' hydration lineup, and the cap is where it earns the upgrade. Where the classic straw cap leaves the mouthpiece exposed between uses, the Covered Cap features a locking lid that closes over the mouthpiece and seals it away from the backpack, the bench, the locker room floor, and everything else a kid's water bottle makes contact with between drinks. A one-touch button opens it instantly when a drink is needed without fumbling with a cap or unscrewing anything, and the covered design keeps the mouthpiece clean between uses so parents worry less about what their kid is putting their mouth on during a long school day or a tournament weekend.

The bottle itself carries all the core qualities that make Hydro Flask the standard for performance insulated hydration. TempShield® double-wall vacuum insulation keeps beverages cold for up to 24 hours, handling the full stretch from morning drop-off to after-school practice and beyond without needing a refill of ice. Durable stainless steel construction means the bottle does not retain odors or leftover flavors between uses - water tastes like water, not like yesterday's sports drink. The bottle is fully leakproof when the covered cap is closed, meaning it can go in a backpack next to homework and electronics without concern. A textured Bottle Boot wraps the base in silicone for protection against the drops and hard landings that come with any day spent in the hands of an active kid.

At 3.5 inches in diameter and 10.8 inches tall at 0.90 pounds, the Covered Cap bottle is slightly larger than the Straw Cap version and sized for the slim-silhouette fit that works for smaller hands while still fitting most cupholders. Dishwasher safe for straightforward cleaning, designed for ages 3 and up, and available in Cloud Pink - a soft, warm pink that makes it easy to spot in a lineup of bags and bottles at any game or event.

Features

• Covered Cap with locking lid keeps the mouthpiece clean and protected between drinks
• One-touch button opening provides instant, easy access without unscrewing or pulling at a cap
• Leakproof when closed - safe to carry in a backpack alongside school supplies and electronics
• TempShield® double-wall vacuum insulation keeps beverages cold for up to 24 hours
• Durable stainless steel construction won't retain odors or leftover flavors
• Textured Bottle Boot included protects the base from drops and hard surfaces
• Slimmer silhouette fits smaller hands and most standard cupholders
• Dishwasher safe for easy, thorough cleaning
• For ages 3 and up
• Cloud Pink colorway
• Not intended for hot liquids / Not for use in microwave, on stove, or in freezer

Specifications

Q&A

Q: How is this different from the Hydro Flask Kids Wide Mouth Bottle with Straw Cap?
These are two separate products with meaningful differences beyond color. The Covered Cap bottle uses a new locking lid that covers and protects the mouthpiece between drinks and opens with a one-touch button. The Straw Cap version uses a traditional straw cap where the straw is exposed when not in use. The Covered Cap is also physically larger - 3.50 inches in diameter and 10.80 inches tall versus 2.90 inches and 9.10 inches on the Straw Cap version. Both hold 18 ounces and share the same TempShield® insulation and Bottle Boot, but the cap design and overall dimensions are different products.

Q: What does the covered cap do for hygiene?
The Covered Cap's locking lid closes over the mouthpiece and seals it away when not in use. This means the surface a child puts their mouth on is protected from contact with bag interiors, cafeteria tables, sports benches, and anything else the bottle brushes against during a school day or game. The one-touch button opens the lid instantly when needed, so the convenience of quick access is not traded for the cleanliness benefit.

Q: Is the bottle truly leakproof?
Yes, when the Covered Cap is fully closed, the bottle is leakproof. The cap must be fully closed and latched for leak protection - confirm the lid is sealed before placing the bottle in a bag. Like all straw-style caps, this cap is not intended for use with hot liquids, which can cause pressure buildup.

Q: How do I clean the Covered Cap and straw?
The bottle and cap are dishwasher safe. The Covered Cap features a one-piece straw component that disassembles for thorough cleaning rather than requiring multiple small parts to be tracked and washed separately. Hydro Flask recommends dishwasher cleaning for regular maintenance.