Its dual gel is proven to effectively absorb micro shocks and help reduce excessive pressure of walking or daily activities. The firmer gel provides arch and heel support and softer gel gives superior cushioning and shock absorption. GelActiv™ Technology: GelActiv™ technology provides superior shock absorption and cushioning performance with the ergonomically designed insert integrated in the insole. GelActiv™ is effective in absorbing micro shocks and helps reduce the excessive pressure of activities like walking or running. Amazing comfort, GelActive technology, all day shock absorption, Superior cushioning, and Sole-shape design for all day comfort.