Hypercolor shirts where a massive hit in 1991 after they preveiwed on "90210" on MTV.
The t-shirts changed color with your body heat but at that time the technology was only young and the magic dyes washed out after only a few washes so it disappeared as fast as it hit the 90s scene.
Hypercolor shirts where an amazing invention in the early 90s but they where a little ahead of the technology. Now all that technology has caught up and the invention of Shadow Shifter uses it to provide a newer and vastly improved version with new and better colors.
The creator of Shadow Shifter is Dyemurex who are creating new products in the Shadow Shifter range such as Shadow Shifter Dark, Shadow Shifter Sports and Shadow Shifter Kids.