Fenix Stainless Steel Insulated Cup

$13.2 ~~$20~~ In stock

This Fenix cup features superior insulation. The copper plating on the inner wall protects against temperature transfer, so your ice will not melt even in the blistering sun and that hot toddy will stay nice in warm into the night. On average the copper vacuum insulation can make a difference of up to 9°F (5°C).

Specifications of the Stainless Steel Insulated Cup

Double wall 18/8 stainless steel
Copper vacuum insulation
Push-on lid with thumb tab
12 oz. (355ml)
Height: 5.3″ Diameter: 3.5″

Wash before first use. Hand wash recommended. Do not microwave.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (5.0 / 5 · 5 reviews)

Chloe C. ★★★★★ Aug 21, 2026

Took this camping last weekend and the copper-plated inner wall really does the job—ice cubes were still solid after six hours of direct sun. The stainless body feels sturdy in hand, not flimsy like other insulated cups I've tried.

Hazel ★★★★★ Aug 20, 2026

I've been leaving one in my car during these 100-degree afternoons and the ice cubes are still perfectly intact by evening, which honestly shocked me. The copper plating inside really does make a difference with heat transfer.

Emma ★★★★★ Aug 19, 2026

Took this on a beach trip last weekend and the ice cubes were still fully intact after five hours in direct sun. The copper inner wall really does the job, and the cup feels solid without being heavy. Exactly what I needed for hot coffee on cold mornings too.