Efficiency is the name of the game. These shoes have a strong clip from top to bottom; quarter clip fronts, side clips behind. Because the clip is not drawn from the web of the shoe, the integrity of the nail holes and shoe strength is protected. Toe area is slightly wider to provide strength and wear. Front shoes have sole relief. Shoes are symmetrical. Punched for 5 City, 5 Slim or 5 Combo.