The Obermeyer Alpinist Stretch Pant is built with HydroBlock® Pro 15,000mm waterproof-breathable technology for uncompromising waterproof performance. Warmth is provided by high lofting 40gm synthetic insulation. The cargo pocket features a YKK AquaGuard® zipper and the lining is chamois fleece. A high performance pant for outdoor activities that requires technical details and performance features. OBERMEYER Kids' Alpinist Stretch Pant