This medium saddle bag has enough space to stow everything you need for everyday rides such as your phone keys, inner tube, small tools and bike pump, with an internal pocket for enhanced organization. Made from tear-and water-resistant material and equipped with a smart attachment point for lights or other accessories. The bag is compatible with all Selle Royal saddles featuring with the patented integrated Clip System for easy fastening and features a Velcro strap that attaches to your seat stem to provide additional stability.