Guys here is what I got from TK409.com website:
"The only prep I did to the leather was wipe it clean if it was dusty. Just paint on the leather dye, it dries fairly quickly. After it dries, hold it in the sunlight. If you see green showing through, it may need another coat.
Open the flaps and lay out flat, spread out, face down.
Cover the back with dye and let dry. Then do the front, starting in the crevices between the pockets. This is done easier by bending it back to spread open the crevices. When dry, spray on the Leather Shene just like you are spray painting. The shene coat is essential; otherwise the dye rubs off easily and all over everything."
It Makes sense if the dye is comming off when rubbed and such that the cloth must be "sealed"