Monkey Boot (White)They were the standard issue Czechoslovakian army boot of WW2 and later worn by the hard mods of the late 1960s. The tread of the Monkey Boot has a distinctive tractor tire design and the composite material they are made from is durable. PVC sole Coated leather lace up retro boots. The original best selling monkey design from Grafters. PVC tread sole. Upper: Coated Leather, Lining: Leather Textile, Sole: PVC. TUK boots run true to US size.