EXPERIMENTAL EXPRESSION. Utilizing the latest innovations and Nike's new ISPA projectâwhich touts a philosophy of improvise, scavenge, protect and adaptâthe Nike ISPA React WR takes experimental expression and runs with it. Built for the city, it features an upper inspired by Nike ACG hiking boots, while Nike React technology provides an extremely smooth ride. Benefits Textile and synthetic upper gives a lightweight look and feel. Nike React technology delivers an extremely smooth ride. Rubber pods on the midsole/outsole offer durable traction. Product Details Reflective elements Textured TPU heel clip Style: AR8555; Color: Black/Gunsmoke/Metallic Silver; Gender: Male; Age Group: Adult