RST ALPHA 4 TEXTILE JACKET - BlackAlpha IV is our entry level length jacket, but at RST, we don't compromise on the core specification. You get a high tenacity Maxtex outer; laminated with reflective panels, featuring an adjustable waist and adjustable arms. You also get a waterproof breathable membrane and a built in quilted thermal lining. Of course you also get RST Contour Plus CE armour in the shoulders and elbows plus a pocket to allow the jacket to be upgraded with the addition