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I-90 WA Metric (Washington) (Road Sign) White Coffee Mug

I-90 WA Metric (Washington) (Road Sign) White Coffee Mug

Regular price $15.95 USD
Regular price Sale price $15.95 USD
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I-90 WA Metric (Washington) Road Sign Coffee Mug Design

This coffee mug features a faithful recreation of the I-90 WA Metric road sign, a nod to a unique period in U.S. transportation history. The design celebrates the brief adoption of metric units on roadways in the 1970s and 80s, specifically highlighting Interstate 90 in Washington State.

Visual Elements

The central element is the iconic Interstate shield, rendered in its classic colors: a bold red banner at the top displaying "INTERSTATE" in crisp white lettering, a vibrant blue field, and large, white numerals "90" indicating the highway number. The shield is bordered by a clean white outline, ensuring clear visibility.

The design incorporates the historical context of the metric experiment. While the Interstate shield itself remains unchanged, the design subtly alludes to the metric era through the conceptual representation of surrounding signage, where distances and speeds were presented in kilometers. This is achieved by the overall aesthetic, which is strongly associated with the context of the era.

Meaning and Symbolism

The I-90 shield immediately signifies the major east-west Interstate highway connecting Seattle and Spokane. The inclusion of the "I-90 WA Metric" aspect acts as a nostalgic tribute to a bygone era in American road signage, representing the short-lived experiment with metric units. This design is for enthusiasts of transportation history and anyone who appreciates a unique and historically-grounded aesthetic.

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Sturdy white ceramic mugs available in 11 oz (≈330 ml) and 15 oz (≈440 ml), with a glossy finish and comfortable C-handle — microwave and dishwasher safe, and made from lead- and BPA-free materials.

These mugs are built from durable white ceramic so colors pop cleanly and prints read with strong contrast. A smooth, glossy glaze gives each mug a lively sheen and makes it easy to wipe clean after daily use.

Both sizes feature a classic C-shaped handle that feels natural in the hand; whether you sip slowly or gulp quickly, the grip is steady. Safety-wise, the ceramic is processed to be lead- and BPA-free — suitable for everyday drinking.

  • Material: white ceramic with a glossy glaze for bright, clear prints.
  • Sizes: 11 oz (≈330 ml) and 15 oz (≈440 ml) to suit small and generous pours.
  • Handle: comfortable C-handle for balanced holding and easy lifting.
  • Safety: lead-free and BPA-free for peace of mind with every cup.
  • Finish: glossy surface that highlights saturated inks and smooth detail.

Perfect for morning coffee, afternoon tea, or a rich hot chocolate — these mugs fit comfortably in most cabinets and cupholders. They’re also a reliable choice for office kitchens where items see frequent use.

  1. Everyday use: safe for hot liquids and daily serving; the wider 15 oz option works great for larger morning routines or extra-steamy drinks.
  2. Office-friendly: the classic profile stacks easily with similar mugs and sits securely on standard saucers and trays.
  3. Gift idea: a practical, well-finished mug is useful and simple to display or wrap for gifting.

Quick note: while the mugs are dishwasher-safe, treating them gently helps keep the print looking fresh longer (see Care tab).

These mugs are rated for microwave and dishwasher use, but small habits extend their life. Run them on the top rack of the dishwasher and avoid high-temperature commercial cycles whenever possible.

For longest-lasting print clarity: hand wash with mild dish soap and a soft cloth, avoid abrasive scouring pads, and don’t let them soak in strong detergents. When microwaving, use short intervals and avoid empty heating.

Available sizes: 11 oz (approximately 330 ml) and 15 oz (approximately 440 ml). The 11 oz is a classic coffee size; the 15 oz gives extra room for cream, froth, or larger servings.

Each mug has a standard-width mouth for easy sipping and cleaning; height and diameter vary slightly between sizes to maintain comfortable proportions and sturdy balance.

Size guide

All measurements are product dimensions in inches.

11 oz 15 oz
Height (in) 3.74 4.61
Diameter (in) 3.15 3.43

Note: dimensions are nominal — small production tolerances may apply. If you need precise fitment (e.g., for nested storage or custom packaging), please allow a small margin.