The Spotty dresses are constructed out of thin, light cotton, overprinted with an irregular pattern of thermochromic spots. The spots form a pattern based on animal camouflage, which encourages dancers to act out social choreographies based on animal behavior. There is a very immediate and literal aspect to the interaction. The direct touch memory is displayed when one user touches another and affects the color of the spots using body heat...

Body contact – whether touching, rubbing, pressing the fabric against their bodies or the bodies of other – makes the inks change color and effectively disappear.

You can read more on these artifacts that react in weird ways to bodies and environments on: XS Design Studio