Once Maars Maker Skinny Matte Tumbler, 20oz

The Maars Maker personalized 20 oz tumbler is the perfect get-along for any excursion or casual day out. Made with double-wall, food-grade stainless steel, these tumblers keep drinks hot for 12 hours and refreshingly cold for a stunning 24 hours. The powder-coated exterior with its smooth matte finish is a pleasure to the touch while the non-tapered shape with the slim design make it highly practical and stylish. The plastic screw-on slide lid with the color-matching straw add extra practicality points. All materials used for this tumbler are non-toxic and BPA-free.

.: Material: double-wall food grade 18/8 stainless steel
.: One size: 20oz (0.6l)
.: Powder-coated smooth matte finish
.: Non-tapered shape and slim design
.: Plastic screw-on slide lid with color-matching straw
.: Keeps drinks cold for 24 hours and hot for 12 hours
.: Non-toxic and BPA-free
.: NB! Hand wash only

To maintain cleanliness, durability, and lasting performance.

• Wash before first use with warm, soapy water.
• Clean after every use to avoid odor and bacteria.
• Hand wash only unless labeled dishwasher safe.
• Use soft sponges to prevent scratching.
• Do not microwave or freeze the bottle.
• Air dry with the lid off to prevent moisture buildup.
• Check regularly for cracks or leaks.
• Deep clean weekly with a vinegar-water solution.
• Store with lid off when not in use.
• Use only for intended liquids (avoid hot or carbonated unless specified).

We offer free tracked shipping to USA, CA, UK, AU, NZ, FR, DE, and the Nordics. Orders arrive within 7–14 business days.

If you’re not fully satisfied, you can return your purchase within 30 days, hassle-free.

1. Is the tumbler insulated?

Yes, our tumblers feature double-wall insulation to keep drinks hot or cold for extended periods.

2. How long will it keep drinks hot or cold?

On average, it keeps drinks hot for up to 6–8 hours and cold for up to 12–24 hours, depending on the model and conditions.

3. Is it dishwasher safe?

Most stainless steel tumblers should be hand washed to preserve insulation and finish. Always check the label or bottom of the tumbler for care instructions.

4. Can I put it in the microwave or freezer?

No. Do not microwave or freeze the tumbler. This can damage the insulation or cause cracking.

5. Is the tumbler leak-proof?

Many of our tumblers come with spill-resistant or leak-proof lids. However, they are not 100% leak-proof unless specified.

6. Is it BPA-free?

Yes, both the tumbler and lid are made from BPA-free, food-grade materials.

7. Can I use it for carbonated drinks?

Yes, but use caution. Carbonation can build pressure, especially in sealed containers. Open slowly to avoid spills.

8. Can I put it in the cup holder of my car?

Most of our tumblers are designed to fit standard cup holders, but we recommend checking the size if your vehicle has smaller holders.

9. Does the tumbler sweat or leave condensation?

No. The double-wall insulation prevents condensation, so the outside stays dry.

10. How should I clean the lid and straw (if included)?

Use warm, soapy water and a small brush or straw cleaner to clean all parts. Allow to fully air dry before reassembling.