The Mountainsmith Bike Cube Deluxe Storage Bag won't exactly make you a better biker, but it will set your mind at ease as you pack for a big ride in the mountains, keeping track of your tools, helmet, tubes, and clothes. So, actually, maybe it will make you a better biker. Besides the grip of gear specific storage inside, this bag includes a removable changing mat for you to stand on when the pavement is too hot to go barefoot while you swap shoes. Unlike your seemingly bottomless one compartment duffel, the Bike Cube uses a tri panel design that keeps things organized so you can find what you need when you need it without rummaging around all day. A haul handle and carrying strap make it easy to move your gear between vehicles.