Lemieux Streamline Aerodynamic Shock Absorber WhiteAerodynamic shock absorber Merino wool reinforcements at the withers and behind the saddle Two pockets on each side for foam shims to fine tune your saddle fit Made from neoprene for superior shock absorption and breathability Quilted cotton spine with a central channel in breathable fabric Exclusive natural bamboo lining to wick away sweat and promote airflow Comes with two sets of 5mm shock absorbing shims for precise saddle adjustment