Catalyst PackDescription At a compact 6L, the Catalyst Pack has easily made its way onto Swift's top seller list as a go to gravel adventure bag. Riders with less clearance and narrow handlebars now have a stellar option for stowing gear on their handlebars and under the saddle. The Catalyst Pack is made out of recycled polyester and contains roughly 10 plastic bottles rescued from polluted rivers. Features Challenge Sailcloth recycled polyester bag cloth rip stop