extreme navy red 577909 This model has a new

This model has a new anatomical shape to provide a perfect fit with a patented knee pad that keeps the protection in the correct position

Soft fabric with Dri-FIT technology moves sweat from your skin for quicker evaporation to help you stay dry and comfortable

Adjustable sleeve ends

Oversized Swoosh design extends to the midsole as an emblem of the Nike ZoomX

Magnetic closure

extreme navy red 577909 This model has a newExtreme is a warm thermal boot with an award winning design and many smart details a favorite for both children and parents. Thanks to the polyurethane construction with adjustable cuff, Extreme is waterproof, light and comfortable enough to wear all day. The boot is made of a flexible polyurethane material called Elastopan and is a 100% PVC free, degradable material that contains millions of tiny air bubbles and is 40% lighter than PVC and rubber.