From the Granito Collection. Granito + Grip ABX is a waterproof comfortable ankle boot for men that delivers a perfect mixture of urban attitude and hi-tech design. Crafted from pull-up leather and nylon, it rests on a breathable sole which offers extraordinary traction, even in bad weather. Amphibiox™ technology: special membrane in the outsole and top of the shoe, guaranteeing comfort, breathability and the maximum waterproofness