Now you need never worry about those sweaty armpits again. The sweat-er is designed to create beautiful patterns all over your t-shirt in response to the natural excretions from your pores. T-shirt fibres are embedded with dyes that react to the chemicals in your sweat. By creating patterns, the sweat-er mimics an epigenetic response to environmental stimuli that affect the way that genes work.

Inspired by Thomas Jenuwein: The epigenetic magic of chromatin