A vortex is not a good thing to be in the middle of. Either you're stuck in a mass of water or you're in a vacuum created by violent swirls of water and things are collapsing in on you. Not fun. There are days when bike rides turn into an exercise in managing chaos; everything that can go wrong with a bike, save broken frame tubes, goes wrong. If you think a dangerous swirl of currents is something you might ride into, then the Sci'Con Vortex Roller 2 saddlebag is for you.Compared with the Compact, you can probably fit in a multi-tool along with the second tube and replace the mini-inflator with a regular-sized inflator like the Innovations Ultraflate Plus.Sci'Con's saddle bags are notable for their retention systems. No Velcro straps. The design has been updated to the 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 Vortex 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 Vortex Roller 2 saddlebag comes in Black Cordura with Black carbon fiber panels. Bag geometry is 8x6.5x14cm making the volume 480 cubic centimeters (29.29 cubic inches).