PUMA Explore Nitro Mid GTX Premium hiking shoe that features nitrogen-infused Nitro foam for cushioning and a Gore-Tex waterproof membrane. The PumaGrip ATR rubber outsole is designed for multi-surface traction on the trails. The integrated heel-supporting lacing system locks the foot in with stability. "Puma Black" colorway is triple black: upper, midsole, and sole. Original unused insoles are included. Worn twice with special inserts. Runs like most Puma sizing: a bit small. Fits more like a 10.5 if hiking socks are used. Great condition for this shoe, which sold new for $150+!