Randall Leather

Anyone know where to get, or even what kind of foam is used on mail carrier mail bag straps? Seems to be 1/2 inch thick white foam of some kind. I'm not having any luck.

I find anything I make with two tone, light brown to black or dark brown edges, or anything antiqued, sells out.

Color is a personal issue but I'm curious to know what color dye is the most popular as far as sales go with your clients. I assume black would be #1. But according to your sales receipts what color dye ranks highest and lowest in sales?