At a time when everyone is rewriting the rules of how the world works, the 4.ZEROGRAND is rewriting the rules of how a loafer works. Engineered with systemic layers of the proprietary GRANDFOAM technology that provides all day comfort and delivers a plush ride, while deeper flex grooves offer exceptional on the go comfort. A lightweight yet durable, full-length thermoplastic polyurethane outsole offers all the traction you need.