Reebok Men's Crossfit Midweight Compression Top Gravel B87916 62% Nylon / 38% Spandex Style Number: B87916 Chlorine-resistant, antimicrobial fabric to help preserve fabric integrity and minimize odor Compression Fit - contours to your body for maximum muscle support PlayDry technology wicks sweat to help keep skin dry and comfortable BareMOVE+BREEZE mesh panels for enhanced ventilation Flatlock stitching for reduced rub and irritation