Core Bottle

Elemental Core water bottles are insulated stainless steel bottles with leakproof lids that keep water cold for up to 24 hours. Shop the Core Bottle in 24 oz and 40 oz for adults, or the Core Pop with a fidget handle in 18 oz and 24 oz for kids.

Shop Elemental Core Water Bottles for Everyday Hydration

The Elemental Core Series is Elemental's everyday line of insulated water bottles, built for school, work, the gym and long days out. Every core water bottle in the collection uses double-wall vacuum insulation, a leakproof lid and a carry handle, in sizes that fit the whole family:

• Elemental Core Bottle: A 24 oz or 40 oz water bottle with a carry strap, for adults and teens who drink a lot through the day.
• Elemental Core Pop Bottle: An 18 oz or 24 oz kids insulated water bottle with a silicone pop-fidget handle.

Both come in dozens of colors and prints, from solid Sage, Navy and Graphite to Checkered Flowers, Black Leopard and Skater Dinos, so it's easy to give everyone in the house their own bottle.

Key Features of Elemental Core Insulated Water Bottles

• 24-hour cold retention: Double-wall vacuum insulation keeps water and ice cold all day.
• Food-grade materials: 18/8 stainless steel with BPA-free and lead-free materials.
• Leakproof bottle caps: The leakproof water bottle lids seal tight in backpacks, gym bags and car doors.
• Easy to carry: Silicone carrying straps on the Core Bottle and pop-fidget handles on the Core Pop.
• Wide-mouth openings: Easy to fill, add ice cubes and scrub clean.
• No sweat: The outer wall stays dry, with no condensation on desks or in bags.
• Durable stainless steel construction: Built for daily drops, commutes and recess.

How Double Wall Insulated Water Bottles Work

Double wall insulated water bottles keep drinks cold by trapping a vacuum between two layers of stainless steel. Heat moves through air by conduction and convection, but a vacuum has almost no air for heat to travel through. That's how vacuum insulation keeps the outside temperature from reaching your water.

In an Elemental Core bottle, that temperature retention means water stays cold for up to 24 hours, even in a hot car or a sunny bleacher seat. Because the outer wall never gets cold, it also doesn't collect condensation. A single-wall bottle warms up within an hour or two and drips onto everything around it. For the longest cold time, fill the bottle with ice water for a few minutes to pre-chill the steel, then pour it out and refill.

Benefits of Stainless Steel Core Water Bottles

Stainless steel water bottles are the most practical choice for everyday hydration because they're durable, easy to clean and hold temperature far better than plastic or glass.

• Clean taste: 18/8 stainless steel resists odors and doesn't add a metallic or plastic taste to your water.
• Safer materials: BPA-free and lead-free materials for adults and kids.
• Long-lasting: A reusable water bottle in stainless steel survives drops that would crack glass and replaces single-use plastic bottles.
• Easy upkeep: Wide mouths and smooth steel walls make washing quick. Hand wash with warm, soapy water and air dry with the lid off to keep the bottle fresh.

Kids Insulated Water Bottles for School and Activities

The Core Pop is the Core Series kids water bottle, made for school, sports and road trips. Its silicone pop-fidget handle doubles as a carry strap and a quiet sensory water bottle feature, so kids can press the bubbles during homework, car rides or waiting rooms.

The 18 oz kids water bottle suits toddlers and younger kids who can already drink from a spout, while the 24 oz Core Pop Bottle gives older kids more water for long school days and practice. As a water bottle for school, the Core Pop seals tight in a backpack and keeps water cold until pickup. At 2.75" × 8", the 18 oz Core Pop is slim enough for small hands and most backpack side pockets. This fidget water bottle, sometimes called a pop it water bottle, comes in 30 designs in the 18 oz size, including Unicorn Magic, Mermaid Sisters and Skater Dinos.

How to Choose the Right Elemental Core Bottle

Choose a Core bottle by who's drinking from it and how long they'll go between refills:

Bottle	Best for	Handle
18 oz Core Pop Bottle	Toddlers and younger kids, school days	Silicone pop-fidget handle
24 oz Core Pop Bottle	Older kids, sports and long school days	Silicone pop-fidget handle
24 oz Core Bottle	Teens and adults, work, gym and commuting	Silicone carrying strap
40 oz Core Bottle	All-day hydration, hikes, travel and long shifts	Silicone carrying strap

A simple rule: if you refill more than twice a day, size up. The 40 oz water bottle is the most popular Core Bottle size, while the 24 oz water bottle is easier to fit in bag pockets. For a family set, pair a 40 oz Core Bottle with an 18 oz Core Pop in a matching color.

Why Buy Core Water Bottles from Elemental Bottles?

Elemental Bottles is an Anaheim, California drinkware brand, and the Core Series is one of its best-rated lines:

• Highly rated: the Core Bottle averages 4.8 stars and the Core Pop 4.9 stars from customer reviews.
• Dozens of colors and prints: 29 for the 24 oz Core Bottle, 28 for the 40 oz and 30 for the 18 oz Core Pop.
• Free shipping on orders over $15, with weekday orders placed before 1 pm PT usually shipping the same day.
• Easy exchanges within 30 days.
• Clean water give-back: 3% of Elemental's profits go to clean water projects.

Pick your size and color above, or Shop All Drinkware to see Elemental's full range of bottles, tumblers and mugs.

FAQs

How long does an Elemental Core water bottle keep water cold?

An Elemental Core water bottle keeps water cold for up to 24 hours. Double-wall vacuum insulation blocks outside heat, so ice and cold water last through a full day.

Are Elemental Core bottles safe for kids and toddlers?

Yes. Core bottles are made from 18/8 stainless steel with BPA-free and lead-free materials. The 18 oz Core Pop is the best fit for toddlers who can drink from a spout.

Can I use an insulated Core bottle for hot beverages?

Core bottles are designed for cold drinks. Hot liquids can build pressure under a leakproof lid and come out hot through a straw or spout, so use a mug or tumbler for coffee and tea.

Why is my stainless steel water bottle leaking from the lid?

A lid usually leaks when the silicone gasket is missing, twisted or worn, or the cap is cross-threaded. Reseat the gasket, screw the lid on straight, and avoid hot or fizzy drinks that build pressure.

How do I remove odors from my reusable water bottle?

Soak the bottle and lid parts in warm water with 1 to 2 tablespoons of baking soda, or half white vinegar and half warm water, overnight. Scrub, rinse and let every part air dry fully.

Are Elemental Core water bottles dishwashers safe?

Elemental recommends hand washing Core bottles with warm, soapy water. Hand washing protects the powder-coated finish and the vacuum seal that keeps water cold.

Can I put ice cubes in an 18 oz kids water bottle?

Yes. The 18 oz Core Pop has a wide-mouth opening that fits standard ice cubes, and the insulation keeps them frozen for hours.

How do I clean the straw and lid of a kids insulated water bottle?

Take the lid apart and wash each piece in warm, soapy water. Scrub inside the straw and spout with a small straw brush, rinse well and air dry before reassembling.