U.S. WWII Reproduction Boots. Rough Leather Service Boots - Combat Boots with firm rubber sole embossed with "US ARMY frame stitched cobbler work extra soft leather Upper: 100% suede (cowhide) Gaiter: 100% grained cowhide leather Sole: rubber Inner sole: 100% cowhide Laces: 100% cotton - Thick sole with small heel .