FEATURES PUREFLOW 5. DNA LT midsole cushioning dynamically adapts to every step and stride with less weight. Rounded heel provides better alignment, minimizing stress on joints. New 3D Fit Print applies strategic stretch and structure for an impeccable fit. UPDATED SEAMLESS UPPER hugs feet for a smooth, socklike feel that’s totally natural. Wraparound heel comfort collar treats feet to an ultra-plush feel. SPECIFICATIONS: ARCH:Medium, High. SURFACE:Road/Track. LAUNCH DATE:January 1, 2017. WEIGHT: 212 g. MIDSOLE DROP:4mm. SUPPORT LEVEL:Neutral.