Work Apron Long (Natural Dye)The fabric is an extremely durable No. 10 canvas. Many pockets and bands for all kinds of purposes. The smartphone pocket has an entrance from the side so that it won't fall out even when you bend over. There is an adjustment ring on the back, so you can adjust it to your own length and it is very easy to put on and take off. Natural dyeing of these products is slow dyeing. Indigo dye takes one to two weeks. Kaki tannin dye takes 3 weeks ~1 month.