JK19: One high-class racing jacket, adopting 450D Nylon, 1680D Oxford, high reflecting material, metal cotton lining and so on, using stereo cutting. The greatest trait is thicker material in elbow, which can give a better protection together with the inner xxxxx addition, there are full function of protection, warm,windproof, reflection, waterproof and ventilation etc. The motorist can adjust the neckline, arm, sleeves, waist and the bottom freely