Treat your feet to all-day comfort with the Performer Nitro Paddock. Top-of-the-line Nitro technology creates a boot with unmatched flexibility, stability, and comfortPerformer Nitro Paddock Boot Product Features : Shock Shield® diffuses heel strike impact to minimize fatigueNITRO™ stabilizing frame for support with forefoot flexibility, Water-resistant leather stands up to the elements and delivers lasting durability, Removable NITRO™ insole for shock absorption and rebound, Duratread™ sole with rider-tested traction zones, Padded collar and tongue, Front lace closure with ankle flexion notchesLocking speed lace hooks with lace lock at top Women's Performer Nitro Paddock Boots in Black Premium Full-Grain Leather, Size: 6 B Medium by Ariat