From Nordstrom website - Built to beat even the heaviest of snows, this insulated boot is windproof and waterproof to protect little feet against wet, slushy and snowy conditions. The rubber foot is molded with a clamshell toe for sturdy comfort, while the multidirectional lugged sole provides enhanced traction and stability on any surface. 1 1/2" heel Adjustable elastic instep strap Built-in gaiter with barrel lock closure system Removable 6mm washable inner boot Temperature rated to -25 degrees Fahrenheit Synthetic and textile upper/textile lining/rubber sole Like new condition