The RiderZone Kaas Saddle Bag/Cycling Seat Pack is suitable for all types of cycles, including MTBs and road bikes. Use the 3 Velcro straps to quickly mount and dismount the bag. The spacious main compartment is big enough for all your biking essentials, and ther's even a mesh pocket at the bag for a water bottle to fit into. Made with high quality materials, this will last you a while. The 3M reflective piping keeps you safe at night, and the free raincover keeps the bag dry in a shower.