Featuring boost™ foam in the midsole, these sneakers provide responsive cushioning that maintains its structure in varying temperatures. The design incorporates a seamless Primeknit upper and a TORSION® SYSTEM for midfoot support, while the stretch web outsole adapts to the natural motion of the foot. energy-returning boost™ properties engineered mesh upper seamless Primeknit forefoot bootee construction featherweight sockliner TORSION® SYSTEM external heel counter stretch web outsole
