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Flag of Liberec Czech Republic - Color Changing Mug 11oz

Flag of Liberec Czech Republic - Color Changing Mug 11oz

100 in stock

Regular price $17.99 USD
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Flag of Liberec Czech Republic - Color Changing Mug 11oz Design

This design displays the official civic flag of Liberec, featuring the city's historic heraldic emblem set against its traditional bicolour field.

Palette and Heraldic Layout

The composition is dominated by the stark contrast of the municipal banner, split horizontally or vertically depending on standard heraldic display, anchoring the civic crest right at the centre. Crisp lines define the heraldic charges against the field, creating an unmistakable municipal insignia that stands out vividly once the heat-reactive surface transforms from its dormant state.

Emblematic Heritage

The flag acts as a direct visual shorthand for Liberec, carrying the centuries-old heraldic tradition of this prominent Bohemian city situated in the northern Czech Republic. Every geometric division and symbolic tincture connects back to the region's rich civic identity, architectural legacy, and local governance.

On the Mug

As this ceramic cup is turned in the hand during a morning coffee break, the wraparound decoration reveals its geographic allegiance slowly, shifting with the heat of the pour to bring the Liberec emblem out of the shadows.

Size

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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.