The 40oz Thermos® Stainless Steel Cup Holder Mug is engineered to fit oversized car cup holders — the ones that standard bottles fall through. Vacuum insulation keeps drinks cold for up to 24 hours. BPA-free stainless steel with a sweat-proof exterior. The slim base fits most standard and oversized cup holders. Perfect for long commutes, road trips, and stadium days.

Specifications: 40oz capacity | Vacuum insulated | BPA-free stainless steel | Keeps drinks cold 24 hours | Fits oversized cup holders | Sweat-proof exterior

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Each product in this bundle uses the same double-wall vacuum insulation — two walls of 18/8 stainless steel with the air removed from the space between them. That vacuum eliminates conduction and convection, keeping cold drinks cold and hot drinks hot far longer than any single-wall or air-gap bottle. BPA-free throughout.

Bundling Thermos® products means consistent performance across every item — the same sweat-proof exterior, the same leak-proof lid engineering, and the same Thermos® warranty coverage whether you're at the office, on a job site, or packing a school lunch. Dishwasher safe — top rack only.

Shop all Thermos® bundles or explore the Icon™ Series and Stainless King™ collection.

Frequently asked questions

Does the 40 oz Cup Holder Mug fit in a car cup holder?
Yes — it is specifically designed to fit oversized cup holders found in trucks, SUVs, and larger vehicles.

Is the Cup Holder Mug dishwasher safe?
Dishwasher safe — top rack only.