Fizik Saddles all feature a little slot in the rear of the saddle that allows one to clip their saddle bags in without worrying about Velcro straps and other straps around the saddle rails and seatpost. Thanks to water resistant fabric and a sealed zipper, your items will stay dry and protected as you ride no matter the weather. The Fizik Saddle Bag with ICS Clip offers enough room to carry items such as a tube, CO2, inflator and more. The bag is offered in two sizes depending on how much room you are after! It is not an issue if you have an aero seatpost or other obstructions due to the unique mounting bracket underneath the saddle.