Karbons 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 Specs Fabric Rating 15K Waterproof / 15K Breathable Shell Material 100pct polyester TST fabric Lining Material 100pct nylon embossed Insulation 40g Thermik1 synthetic insulation Features Fully taped seams seal water out of all seams Inner thigh vents open to release excess heat Articulated legs for a natural fit Adjustable alouva lined waistband for the perfect fit Boot gaiters fit around boots to keep out snow Scuff guards keep skis from slicing your pants Lower leg zipper with gusset for easy boot access Removable suspenders help his pants stay put 2 hand exterior pockets to secure gear