We use a low impact dye that is OEKO-TEX certified. Low impact dyes are way better for the environment long term than both natural dyes and hand dying. They last longer, have better viability and require significantly less water for the dying process, since they permanently bond with the fibers. Unlike natural dyes, low impact dyes are toxic and chemical free and don’t require mordants or heavy metals like alum, copper, and iron, as well as stale urine - which are often used to fix natural dyes to fabric.
The low impact dye we use has been certified organic by OEKO-TEX - an international trademark with uncompromising standards for product safety and sustainability, so you can rest assured that all Studio K garment are completely free of any harmful dying substances.