Now this training favorite has an improved last, new step-in sockliner and the smooth control of 3-D ForMotion. And a natural, balanced touchdown that feels better than ever. Upper is NoSeam-fit technology. Perforated EVA tongue for lightweight comfort and breathability. Lining is GeoFit construction for anatomical fit and comfort. Inlay is Dual-layer adiLite/respoEVA sockliner for great step-in and motion comfort (antimicrobial). Midsole is adiPRENE provides protection from harmful impact forces. adiPRENE in the forefoot and TORSION SYSTEM bar for midfoot arch protection. ForMotion for enhanced transition and responsiveness. Outsole is adiWEAR outsole for best durability in high-wear areas. Blown-rubber outsole for lightweight grip and cushion.