Roll-top style pannier bag set with a fold over top that can be used to expand storage should you need a little extra roomWith the top folded over, the bag is rain resistant and holds 28L of storage, with the top expanded it boasts an impressive 32L of storage spaceUniversal Bridge System (UBS) can be installed as is with the integrated straps, or used in conjuction with many types of mounting plates (sold separately)Adjustable lower straps on the inside face of the bags allow them to be secured to the sides of pannier compatible rear racks for improved stabilityConstructed of water repellant polyester, it is a dependable bag that will offer years of reliabilityReflective accents on the bag`s sides, front and rear faces improve visibility and safetyUBS / Straps11.8x7x19.4`1708 c.i.BlackXXX-Large (700+ c.i.)