Overdye effect

Overdye effect refers to the second dyeing of an already coloured textile in another, usually darker or greyer colour. Base goods can be t-shirts, sweatshirts, denim, chinos or entire vintage collections, but also yarn-dyed stripes and checks. The new dye blends pigment-like with the base colour: red oversaturated with navy produces purple-aubergine, yellow overdyed with rust gives ochre-brown, a white stripe on a ringer tee becomes a pale shade of the top colour.

The process originated in the second-hand and upcycling world: unsold vintage polos, military stocks, hotel wool blankets were re-tinted to match current trend colours. Brands like Stussy, Kapital, Nudie Jeans, Vetements and Aime Leon Dore use overdye systematically for streetwear collections. Technically direct dyes (cotton), disperse dyes (polyester) or acid dyes (wool) are used in vats at 60-95 degrees, often in small batches of 20-100 items.

For corporate wear and workwear, overdye is a tool to convert leftover or previous-season stock into a uniform new colour. Challenge: different base colours produce slightly different final tones (batch spread), which customers must accept. Ideal for 'workwear-inspired' collections with a deliberately uneven look. Sustainability advantage: goods that would otherwise be dead-stock burnt or landfilled get a second life.