This winter boot has a leather upper specially treated to be waterproof. This leather offers superior resistance to salt stains. The YOKO winter boot has a 100% wool lining. The wool brings a nice warmth and a cozy comfort. These boots were designed to keep your feet warm. The level of protection against the cold depends on the level of activity and blood circulation in your feet. The laces allow a good fit. A zipper makes it easy to put on and take off the boot. The outsole is serrated and provides good traction. Saute-Mouton boots require very little maintenance. A damp cloth is sufficient to remove salt stains. Water resistance does not apply to zippers or embellishments. Natural marks and color variations are inherent in leather and highlight its beauty.