As much as we like carrying just essentials in a tiny package, sometimes a bigger bag makes more sense. We don't always have the confidence that the skeleton kit is enough. Sometimes we need to carry a bit more. The Sci'Con Compact Roller 2 saddlebag has almost double the interior space of the Phantom, all of which you can put to good use.Here, if you're a good packer, you can squeeze in a second tube, as well as a patch kit, a few Allen keys, a boot, and perhaps a CO2 cartridge or two and a mini-inflator. Helping maximize the space is Sci'Con's new Roller 2 mounting system. If you recall the original Roller System (now Roller 1), you start with a plastic cleat that secures to your seat rails with the twist of a knob. Then you install the bag by matching the cleat with the opening in the binding mount. And give it a 1/4 turn. The Roller 2 takes that same idea and adds two tire levers to the design. There's one mount for a tire lever outside the bag, and a mount for a tire lever inside the bag. To make sure the lever slots work, Sci'Con includes the levers. Building the two levers into the design frees up space in the bag, so you can fit more into it. The bag itself has a mix of materials. The side panels are carbon fiber weave. The main panels are Cordura. Reflective piping runs along the seam between the carbon fiber and Cordura panels; reflective is good. Because the bag doesn't have a strap underneath it to help hold the shape, there's an ABS body structure inside. This way it has some structure and shape whether the bag is empty, partially-loaded, or packed to the gills.The Compact has a zipper that opens the bag up like a cargo ship; you'll have a top and a body. There is reflective tape alongside the zipper as well as on the bottom of the bag along the seams. It has just a simple single cavity with a Velcro compression strap to hold things in place; this is particularly useful when you're not filling the bag, as the stuff won't bounce around the inside, making distracting noises all during the ride. The Sci'Con Compact Roller 2 saddlebag comes in Black Cordura with Black carbon-fiber panels. Dimensions of the bag are 9.5x6.5x13cm, and the internal volume is 430 cubic centimeters (26.24 cubic inches).