"Use strong soap and water to get any oil or grease off them. Cover soles in thin sheet like one they probably shipped in to keep clean when in storage. Store in a cool place." I think the sole wearing down around the edges is SOP. They should last you a long time though.
crepe is quieter in the field it provides better insulation it is more shock absorbent it looks better on a wallabee, desert, hunting or mountaineering boot (IMO) it does not track mud or dirt (as much as a lugged sole) it can be used as an eraser they are savory or sweet