Shoes for Crews Men's Professional dress shoe delivers comfort and safety as you stride through any situation. Crafted with durable, water¿resistant, full-grain leather upper. This shoe has the added benefit of the shock absorbing stitch-reinforced SFC Mighty Grip outsole. Removable cushioned insoles add comfort and arch support. Leather Upper. 1. 2kg. Mighty Grip slip-resistant sole. EN ISO 20347: 2012.