The North Face Thermafelt insulating winter boot ,boys size 13/ EU31. EUC barely used removable inserts. Blue with black sole . Lightweight, flexible, waterproof winter boot with an updated protective rubber shellBallistic nylon with leather overlaysCemented and seam-sealed waterproof constructionNew Thermalfelt Plus removable liner for superior warmth down to -25°FBungee lace shaft and collar for a secure fit and to keep out snow.