Introducing the bontrager pro seat pack this refined seat pack is ideal if you are looking to go out on a lengthy and fast paced ride the saddle bag is compact yet big enough to house all your essentials you need keeping its profile flat and as small as possible makes it more aerodynamic and seamlessly fits into any bikes aesthetics with ease the bag fits to the rails of your saddle or seat post with a velcro strap there is an elastic strap on the base of the saddle bag which can hold onto