10oz Onyx Tumbler
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- S’well Tumblers 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.