Wholesale 20oz Double Wall Vacuum Insulated Tumbler Stainless Steel Car Travel Coffee Mugs with Lids

• 1. Colorful Design & Aesthetic Appeal

  The set features ​10 vibrant hues (electric blue, forest green, navy purple, coral pink, etc.) arranged in a ​2x5 grid on a pure white background. Each mug’s body showcases saturated, eye-catching colors while the ​silver metal trim (cup rim and base) adds modern sophistication. The color gradient between adjacent mugs creates visual harmony, balancing boldness with minimalist elegance.

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  ​2. Material Quality & Durability

  Crafted from ​18/0 stainless steel with a ​matte finish, these mugs resist fingerprints and stains effortlessly. The ​food-grade BPA-free inner lining ensures safety for hot and cold beverages, while the ​double-walled vacuum insulation (with 0.3mm air gap) maintains internal temperature stability.

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  ​3. Ergonomic & Functional Details

• ​Contoured Grip: The ​3D ribbed handle distributes pressure evenly, reducing slippage even when fully filled.
• ​Leak-Proof Seal: The ​precision-molded silicone lid (with 3mm rubber O-ring) prevents spills during transportation.
• ​Wide Mouth Design: Facilitates easy filling, stirring, and sipping while keeping the mug balanced

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  ​4. Temperature Retention Performance

• ​Hot Beverages: Keeps coffee or tea steaming-hot for ​5+ hours (tested at 70℃ initial temperature).
• ​Cold Drinks: Maintains iced water frosty for ​24+ hours in 25℃ ambient conditions.
• ​Quick Preheating: The metal exterior heats up to 50℃ within 2 minutes when microwaved (for instant hand warming).