Natural indigo is one of the oldest methods of bringing colour to clothes. Dutch denim brand K.O.I. (Kings Of Indigo) uses the Indigofera Tincoria plant for the coloring of their garments and for the dye process the brand works together with a company based in India. They dye in the purest form: the fabric is soaked in water for between 1 and 3 days, and then the fabric is dipped in natural indigo 4 times. With this technique you will get the most deep natural indigo tone. K.O.I. made several items this collection using this authentic method, the worker jacket ‘Jonathan’ made of 18oz canvas fabric is one of the iconic pieces. The colour came out really nice!

KOI Jeans jonathan kings of indigo long john blog natural indigo tony tonnaer amsterdam jack jacket worker classic indigofera buttons usa japan holland nl blue raw rigid washed worn-out blue shades (6)

KOI Jeans jonathan kings of indigo long john blog natural indigo tony tonnaer amsterdam jack jacket worker classic indigofera buttons usa japan holland nl blue raw rigid washed worn-out blue shades (5)

KOI Jeans jonathan kings of indigo long john blog natural indigo tony tonnaer amsterdam jack jacket worker classic indigofera buttons usa japan holland nl blue raw rigid washed worn-out blue shades (7)

KOI Jeans jonathan kings of indigo long john blog natural indigo tony tonnaer amsterdam jack jacket worker classic indigofera buttons usa japan holland nl blue raw rigid washed worn-out blue shades (4)

www.kingsofindigo.com

Written by Wouter Munnichs
I'm the founder of Long John. Next to running this daily magazine, I'm working as a freelance denim specialist for the industry. Titled as 'Denim Influencer 2020' by Rivet 50. Celebrated my 10th anniversary with Long John in 2021.