The FastBack Carbon Slim Seatback Bag is the one stop shop for hard-shell recumbent bike seats. Are you going to ride until the sun sets? Toss a jacket in the Carbon Slim. Gonna work up an appetite climbing that mountain? Fill the Carbon Slim with GORP and energy bars and you're set. Forgot it's Mother's Day? Grab some chocolates and a card and make haste! Terracycle's SpiderGrip technology is reconfigurable to achieve an exact, secure fit every time. Once you form the pocket to the shape of your seat, you can take it off and put it back on without any trouble at all. The FastBack Carbon Slim Seatback Bag will let you take your goodies with you when you want to ride far and ride fast.