Great value, quality seatpackThe hook-and-loop saddle attachment keeps the bag firmly connected to your bikeThe low-profile seatpost attachment prevents the bag from swinging while ridingInternal pockets securely hold credit cards and valuablesThe loop on the front of the bag easily attaches clips for rear lightsReflective elements enhance visibility for maximum safety in any conditionsThe light and robust material holds up to elements without contaminating contents940 cc (57 cu in) capacity