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  • United States National Park Service - Color Changing Coffee Mug 11oz - Go Mug Yourself
  • United States National Park Service - Color Changing Coffee Mug - Go Mug Yourself
  • United States National Park Service - Color Changing Coffee Mug - Go Mug Yourself
  • United States National Park Service - Color Changing Coffee Mug - Go Mug Yourself
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United States National Park Service - Color Changing Mug 11oz

United States National Park Service - Color Changing Mug 11oz

100 in stock

$17.99 USD
$17.99 USD
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Logo of the United States National Park Service - Color Morphing Mug Design

The Arrowhead, the official emblem of the United States National Park Service, is a confident piece of agency heraldry: a single bold silhouette holding four small scenes of the American landscape.

Visual Elements & Composition

The arrowhead outline dominates the design, its pointed form framing everything inside. Within the border, four icons sit in deliberate order: a sequoia tree, a bison, a range of mountains, and a lake. Each is drawn in a clean, graphic style with no shading to soften the edges, so the emblem reads clearly from across a room. The arrangement is balanced and symmetrical, giving the whole composition a settled, orderly feel.

Meaning & Symbolism

Every element stands for a part of the park system's core resources. The arrowhead shape signifies the nation's historical and archaeological values, the sequoia represents vegetation and plant life, the bison stands for wildlife, the mountains speak to scenic beauty and geologic resources, and the lake represents water resources and recreation. The emblem was authorized as the agency's official symbol on July 20, 1951, developed by Herbert Maier and his staff under Director Conrad Wirth. It has been the face of the Service ever since, a compact summary of what the parks exist to protect.

Why It Works on a Mug

A mug is held in the hand and turned slowly while the morning coffee cools, so the emblem gets read a little at a time, the arrowhead first and then the tree, the bison, the peaks and the lake. The design also carries a small trick of its own. Once a hot drink is poured in, the artwork emerges from the surface, so the Arrowhead appears as the cup warms and fades back as it cools. It makes a thoughtful gift for anyone who has spent a summer on a trail or dreams of one.

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Color-changing ceramic mugs with a glossy finish, black exterior, and white interior. Available in one size: 11 oz (≈330 ml). Heat-reactive coating reveals your custom design when filled with hot liquid. BPA- and lead-free, with a comfortable C-handle.

This mug brings a playful twist to the daily coffee or tea ritual. At room temperature, it looks like a simple black mug with a glossy finish. But add a hot beverage, and your chosen design fades into view, showing vivid colors against the white interior.

The ceramic body is durable enough for repeated use, while the C-shaped handle balances comfort and grip. Printing uses sublimation techniques that fuse color into the heat-reactive surface for crisp results when the design appears.

  • Material: ceramic with glossy black exterior and white interior.
  • Size: one standard size, 11 oz (≈330 ml).
  • Finish: glossy glaze with heat-sensitive surface.
  • Printing: sublimation process produces crisp, vibrant colors.
  • Safety: BPA-free and lead-free, suitable for everyday drinks.
  • Effect: design is faintly visible when cold, fully revealed when hot.

Perfect as a novelty gift or a fun personal mug, the heat-reactive design makes coffee breaks more engaging. It works well for morning coffee, afternoon tea, or hot chocolate.

  1. Daily routine: fill with any hot beverage to reveal your chosen artwork.
  2. Gifting: the “magic” reveal makes it a memorable present for birthdays, holidays, or office exchanges.
  3. Office use: sparks conversation while still being practical for everyday drinks.

Note: for best results, avoid designs that rely heavily on deep black backgrounds, as they may blend with the mug’s surface when cold.

Unlike standard mugs, color-changing mugs require gentler care to preserve the heat-reactive coating. Hand-wash only — avoid the dishwasher and abrasive scrubbers, which can damage the finish and reduce the effect.

The mug is safe for short microwave use when heating liquids, but repeated high-heat cycles may shorten the lifespan of the coating. Always allow the mug to cool before washing.

Available in one classic size: 11 oz (approximately 330 ml). It’s large enough for most standard coffee makers and fits comfortably in most cabinets.

Size guide

All measurements are product dimensions in inches.

11 oz
Height (in) 3.78
Diameter (in) 3.23
Diameter w/ handle (in) 4.76

Note: measurements are approximate; slight variations may occur due to manufacturing tolerances.