Hi Vis X Back Heavy Duty Waterproof JacketHi Vis X Back Heavy Duty Waterproof Jacket Outer: 100% Polyurethane, 350 GSM; Lining: 100% Polyester Compliant to TTMC W23 standards High waterproof rating to provide protection in heavy rain conditions Waterproof rating 20,000mm Neoprene storm cuff to create a comfortable waterproof seal Adjustable hood made to fit hard hats Hood features a hardened peak to keep the rain off your face Rivets at key stress points for increased strength High frequency