The Obermeyer Boy's Porter Insulated Ski Pants offer a 2-Way stretch in a strong weave fabric that makes the Porter a casual fitting pant with unrestricted mobility. The stretch fabric is treated with HydroBlock® Pro 15,000mm waterproof/breathable lamination and lightly insulated with premium hydrophobic 60 gram insulation. Technical features: Critical seams sealed with CZV™ Control Zone Ventilation. EWS™ - Extended Wear System increases pant hems and powder cuffs. Functional features include Full-Motion™ articulated knees, adjustable waist, belt loops, reinforced inseams, and water-resistant powder cuffs.