The designers at Speedsleev weren't satisfied with traditional saddle bags that attached to their seatposts. Minimalists at heart, they set out to create a vessel that could carry ride essentials without rattling endlessly over uneven roads or chafing against their shorts. Their answer is the Ballistic Nylon Seatsleev. Able to carry a spare tube, one or two C02 cartridges, tire levers, and a patch kit, the bag packs flat then rolls into itself, closing with a hook and loop strap. When you're ready to ride, mount it to the rails of your saddle to keep it secure and out of the way.