-Premium 20K waterproof and 25K breathable jacket for superior protection during heavy rain conditions.-Extremely light stretch woven and fully taped seaming fabric to enhance comfort and freedom of movement.-Adjustable cuffs, hem and hood construction provides snug fit.-Ventilation on the back for breathability.-Packable construction for easier portability.-Two side zip pockets for secure storage.-Reflective details for better visibility during night run.Nylon 100%