Right, chalk is what the military used back when. However, most of the white leather was buff leather, a lot different than the white chrome-tanned leather we get today, if you can even find it. White buff leather is even scarcer & the last time I checked about twice the cost of Leather Factory white sides. As far as white chrome-tanned, I would used saddle soap if the hair (slick) side is the dirty side, as chalk just sloughs off this surface. It will stay on the flesh (rough) side, but still doesn't seem to hold on as well as real buff.