Skip to product information
1 of 4

Submarine Readiness Squadron 31 (U.S. Navy) Color Changing Mug 11oz

Submarine Readiness Squadron 31 (U.S. Navy) Color Changing Mug 11oz

100 in stock

Regular price $17.99 USD
Regular price Sale price $17.99 USD
Sale Sold out
Shipping calculated at checkout.
**Submarine Readiness Squadron 31 (US Navy)** The Submarine Readiness Squadron 31 is a vital component of the United States Navy, specifically tasked with maintaining and preparing nuclear-powered submarines for operational readiness. This squadron, often abbreviated as SSRN-31, falls under the umbrella of Military Sealift Command and operates out of the Pearl Harbor Naval Shipyard in Hawaii. The primary role of Submarine Readiness Squadron 31 is to conduct the overhaul, repair, and refueling of nuclear-powered submarines, ensuring their continued operational readiness. This includes routine maintenance, upgrades, and repairs, as well as more extensive overhauls after prolonged deployments. The squadron's workforce consists of a mix of civilian employees and military personnel who possess the necessary skills to manage such complex tasks related to nuclear-powered submarines. Their efforts contribute significantly to the US Navy's ability to maintain a strong presence underwater, ensuring the defense and protection of national interests around the globe.
Title
Size

Bulk Discounts Available

These discounts apply to all products.

Buy 2
10% OFF
Buy 3+
20% OFF
Buy 5+
30% OFF
Buy 10+
40% OFF

Automatically applied at checkout.

View full details

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.