The spacious saddle bag is perfectly suited for a change of clothes and other equipment. The packing volume varies between 8 and 16.5 liters thanks to the adjustable rolling closure.FeaturesSpacious, waterproof saddlebag with roll closure Ideal for bikepacking, alpcrossing, touring Light weight sturdy PU laminated rip stop Nylon Variable volume adjustable from 8 to 16.5 liters Air release valve to easily purge the bag of trapped air, allowing for tighter compression Heavy duty fabric used at the saddle rail mounting location Sturdy PE inner stiffener Elastic cords on the outside of the bag for quick fixing of light gear Saddlebag acts as mudguard Can be mounted to carbon seat posts Daisy chain with seven fixing locations runs along the underside of the bag, allowing a rear light to be fixed 3M Scotchlite reflectors Maximum Carry Capacity: 11 lbs (5 kg) Dimensions: 11.8 x 25 x 8.7″