The Mountain Horse Men's Active Winter Rider is a serious riding boot designed to withstand the winter cold. The hard wearing and waterproof outer is complimented by a warm and cozy faux fur lining. The elastic insert in the leg is 50% stretchier than past Mountain Horse elastic, making for an even better fit. The boot has been tested to withstand one million flexes in 14 temperatures, while the steel shank continues to provide stability. Black faux fur lining Hard wearing outer material YKK Vislon side fitted zipper New and enhanced elastic The Foot: Faux fur lining continues into the foot area Reflective inserts along back for night visibility Design tested with one million flexes The Sole System Built in steel shank Heel is fitted with shock absorbing IPS system Slim and contoured design made especially for riding Dirt repellent tread zones on bottom of sole for enhanced grip in the stirrup Color: Black onlyOuter: Duralon/ExtensiaLining: Faux fur