The Ultra Jacket can handle the toughest race-day conditions without missing a beat. High-quality materials and technical features ensure the jacket is both fully waterproof and extremely breathable for any weather. Features: Exceeds the breathability and waterproof standards required by the Ultra Tour Du Mont Blanc Integrated flip mitts provide waterproof warmth in cold or wet conditions Tunnel Effect hood with ventiliation allows ideal airflow while keeping rain out Peristaltic undeararm vent pumps in cool air and pumps out warm air during natural arm movement Packs into interior chest pocket Waterproof breathable jacket with 20,000g/m2/24hr moisture vapor transmission rate and 30,000mm water entry pressure Materials: 100% Nylon 82% Nylon 18% Spandex