Clarks Coling Boss Shoes Coling Boss is our traditional men's shoe which mixes a timeless toe cap design. Premium touches can be found in the durable TPU leather sole and full leather linings while our Cushion Plus technology offers the best underfoot cushioning. Perfect for smart formal wear. Outer Black, :Leather Inner Black, :Leather Sole Black, :Mixed Fastening: Lace Standard = Clarks G/ Wide = Clarks H