The Wolverine Cirque 3/4 Insulated Pants are insulated to add warmth on frigid tours and early morning dawn patrols. When the track gets steep or the temperature rises with the sun top-to-bottom zippers at each side let you remove the knickers without taking off your boots or skis. The knickers have a water-resistant treatment to shed any snowfall when you're in the middle of this transition or when things get powdery.