Earlier this year we experimented with some natural indigo dye and its effect on various leathers. In addition to dyeing raw materials, we also submerged an entire finished Service Boot in the vat of indigo. The original boot was made from Horween's Natural Essex which is a full-grain, undyed, vegetable tanned leather . After multiple dips the upper leather, insole, and midsole fully absorbed the indigo and were left a rich, uniform blue. The brass eyelets and white nylon sole stitch remained unchanged. While the concept is not entirely ready for production yet, we will continue to explore what effects can be acchieved with Indigo and other natural dyes. Click through for more photos of the process.