Compact and sleek the Topeak RX Trunk Bag EX is ideal for light touring and commuting. Featuring QuickTrack technology the bag is incredibly easy to mount, simply line up the composite QuickTrack base with the channels on any Topeak rear rack and slide forward until it locks in to place. No tools, no straps, no hassles. To remove simply push the yellow release button and slide the bag rearward until completely disengaged.600 Denier Polyester Dupont Teflon Coating for superb weather resistanceLarge capacity main compartment with two side pockets, and a multifunction top pocketAerodynamic rigid foam wallsElastic top bungees3M reflective strip for safetyBuilt-in carrying handle, plus detachable shoulder strapQuickTrack mount for Beam Rack RXSafety light clip31x19x15cm2.8L570gThe one main compartment and two side zippered pockets offer plenty of storage space while the elastic top bungee helps secure items within easy reach. 3M reflective trim and safety light clip offer plenty of visibility options and the top mount carry handle and optional shoulder strap allow you to use the bag off the bike.