Size 11 Like new! Low-profile training silhouette with breathable textile upper Reebok branding throughout Heel clip offers extra stability Full lace closure system Floatride Energy Foam for impact protection and cushioning Raised lugs on outsole delivers traction indoors and outdoors Don't let the four walls of the gym stop you from getting your sweat on. The Men's Reebok Nano X1 Adventure Training Shoes are designed for workouts indoors and in the great outdoors, thanks to their raised lug traction, stretch ripstop construction and Floatride Energy Foam bringing the cushioning.