Melt away miles in these shoes as each step propels you forward. A design collaboration with Stella McCartney, they have a knit upper that adapts to the changing shape of your foot for flexible comfort. Regular fit Lace closure adidas Primeknit textile upper Flexible Stretchweb outsole with Continental™ Rubber Responsive Boost midsole; Stabilizing Torsion System Ultra-lightweight and adaptive Ideal for 10k runs