HIRSCH Performance Sport Collection of watch bands meshes the finest Italian leather in classic and trendy designs with a core of HIRSCH proprietary Premium Caoutchouc, in fashion colors. The highly functional design is water-resistant, offering excellent durability during sports activities, working out or just living an active life. The special geometry and superior grooves at the heart of the Caoutchouc core wicks moisture from the skin and regulates the temperature under the watch band, for the most comfortable wearing experience possible.