Psych-out your gym teacher/trainer/overbearing girlfriend by moving your arms really fast in this…it sounds like you’re running. And sounding like you’re working out is closure enough for us. Nylon windbreaker jacket with mesh lining, zip-out hood at collar, patch pockets at chest, zippered pockets at waist, and logo embroideries. Nylon shell / poly mesh lining. RVCA.