Ah that sounds like a BAS (British Antarctic Survey) boot. Something simular is used by the Royal Marine's Arctic Warfare Cadre. They are really designed for us in very cold, dry conditions. For most enviroments you are better off with decent walking boots/shoes. Footwear is one area in which being prepared to pay top dollar for good, walk across Hell boots is good practice. Especially if your life depends on how far you can walk.