Karbon's Rock Insulated Ski Pant is indeed as solid as a rock. Its 15K shell fabric keeps even the slightest hint of moisture and winter breeze off your skin. The 40g of synthetic insulation puts a thermal barrier between your warm legs and the biting cold air. The articulated knees keep your skiing tight and smooth. Reinforcements at the crotch and cuffs ensure that these pants keep skiing for seasons to come.