Moonstone Tumbler

18oz
Size Chart

Keeps drinks hotter or colder, for longer.

BPA/BPS-free and reusable.

Vacuum-insulated, food-grade 18/8 stainless steel.

FREE SHIPPING ON U.S. ORDERS $30+
Design-focused

The Stone Collection

Embodying translucent hues in the purest form, the Stone Collection emulates the most coveted semi-precious gems. Featured in a durable stone-like texture for added grip, the muted color palette simulates the raw delicacy of the minerals.

Thoughtfully Designed

  • The Tumbler features a wide mouth and thin rim for easy drinking. Ice cubes fit effortlessly inside.
  • The pop-on, Slide-Open Lid creates a splash-proof experience, ideal for at-home or on-the-go drinking.
  • The 10oz Tumbler holds juice, wine, cocktails and more.
  • The 18oz Tumbler holds your favorite beer or glass of iced tea.
  • Customize your own essential set by pairing Tumblers with a 25oz S'well Bottle, 40oz Roamer or 40oz Traveler; mix and match your favorite styles to create a unique set.
Form Factor-focused

A Design Company for Good

Founded by Sarah Kauss in 2010, we created the first reusable fashion hydration accessory to help rid the world of single-use plastic bottles - and we haven't slowed down since. From our original, iconic 17-ounce bottle to our latest innovations in food and barware, our products continuously outperform, and they do it in style.

Form Factor-focused

Looks Good, Performs Beautifully

  • S'well Tumblers and Mugs feature Therma-S'well® Technology with triple-layered, vacuum-insulated construction, designed to keep beverages colder or hotter, longer than all the rest.
  • Offers a condensation-free exterior that won't sweat in your hands or bag.
  • BPA/BPS-free and reusable.
  • Made from 18/8, food-grade stainless steel with superior construction to reduce the need for single-use cups.
  • Top-rack, dishwasher safe.
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Frequently Asked Questions
How does my S’well work?
S'well bottles, Travelers, and Roamers will keep your beverage cold for up to 24 hours or hot for up to 12. Thanks to our triple-walled ThermaS'well™ insulation technology, which includes a copper layer, S'well products are able to keep any liquid hot or cold for long stretches of time. See more.
Will my S’well product sweat?
No way! Thanks to S’well’s triple-walled insulation, which includes a copper layer, the outside of your S’well will stay completely condensation-free. See more.
Can I fly with my S'well?
Prepare for take off! Your S’well is airport security friendly, as long as you remember to empty out what’s inside first. See more.
Does S'well sell different caps & lids?
Designed to accommodate your active and on-the-go lifestyle, S’well has released a variety of accessories sold separately. See more.
What is the warranty on S’well products?
S’well offers a one-year limited warranty on all bottles purchased from swell.com and authorized retailers with proof of purchase. This warranty covers any manufacturer defects, such as thermal performance issues, base becoming detached from the bottle and non-polished surfaces. See more.
Still have questions? Go here.
Some S'well Feedback
10oz 10oz

Perfect for morning smoothies or a hot cup of joe.

Keep hotter/colder for longer
3.46"D x 3.33"W x 3.74"H
0.37lbs
18oz 18oz

Fits a standard bottle of water.

Cold for 12 hours
Hot for 4 hours
3.46"D x 3.35"W x 6.26"H
0.45lbs
24oz 24oz

For extra large iced brews and hot beverages.

Cold for 18 hours
Hot for 5 hours
3.46"D x 3.33"W x 7.68"H
0.71lbs