Blue-ribbon-ready with its winning combination of lightweight flexibility and targeted support, the Nitro Max boot delivers the time-tested performance features that our equestrian athletes demand. Crafted to out-maneuver the competition in fit and design, these boots will keep you in prime position in the saddle. Nitro Max Tall Riding Boot Product Features : NITRO™ stabilizing frame for support with forefoot flexibility, Shock Shield® diffuses heel strike impact to minimize fatigue, Premium full-grain leather upper with oiled inner calf panel, Removable NITRO™ insole for shock absorption and rebound, Duratread™ sole with rider-tested traction zones, Full-length elasticized panel on lateral side with oiled leather inner panelLightweight chassis for heel and mid-foot torsional stability, Mobility notch Women's Nitro Max Tall Riding Boots in Black, Size: 7 B Medium Slim by Ariat