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 all-new triple-density foam system that delivers a plush ride, while deeper flex grooves offer exceptional on-the-go comfort. Engineered with all-new triple-density foam system that delivers a plush ride, while deeper flex grooves offer exceptional on-the-go comfort.