This is our smallest bag but can still tote all the essentials for a days ride. Snacks, drinks, binoculars, or whatever other small items you carry are well suited for this bag. For a sizing example, the photos are shown with rain gear in the bags, the jacket in one and the pants in the other. These bags also ride very nicely on the saddlebag platform if a larger bag is not necessary or if you prefer a smaller bag on the rear. They are designed to mount to either the horn bag platform or the saddlebag platform and will require one or the other. Sold Individually.