The ASICS® GEL-Cumulus® XI running shoe provides comfort and stability for a variety of gaits from underpronators to mild overpronators. I.G.S.® (Impact Guidance System) linked components enhances the foot's natural gait from heel strike to toe-off. Solyte™ midsole provides exceptional comfort and surprising stability. Space Trusstic System™ creates a pocket between the Trusstic System™ device and the midsole, allowing for greater midsole deformation and more efficient foot function. "Twist" GEL® Cushioning System enhances shock attenuation and allows for improved toe-off position. Wt. 11.6 oz.