OK guys got some ?'s. Trying to figure out what back of a strop is made of. In the pics one strop came with 2 pices back to back. One piece heavy leather and rough on back, other smoothe leather with ? on back. Do not think it is canvas, looks more like cordoroy[don't think I spelled it right}. Pick #4 is the one i'm interested in. By the way the rough leather and ? side are on the inside of the two strops when attached to each other, the way it came.
Also, does it look like anything needs to be done to heavy leather side? Thanks in advance Paco