Lace-up closure for optimal fit. GO Mate technology. GO sockless Integrated Ortholitee anti-microbial sockliner helps inhibit odor and prevent slippage. Memory Form Fit design with memory foam padding heel cut for stay-put fit. Proprietary 'SQUISH' component is combined with exclusive Resalyte" material. Resalyte" Midsole proprietary lightweight injection-molded compound with memory retention helps absorb impact. GO Pillars technology on midsole and outsole provide anatomically correct arch support and shock absorption. GOimpulse and integrated GO Pillar sensors provide anatomically correct arch support, shock absorption, and flexibility for a more responsive walking experience. Side 'S' logo. Multidirectional, man-made outsole. Imported.