The Topeak RX Trunk Bag DXP with Side Panniers is ideal for use on and off the bike making it suitable for touring and commuting cyclists. Featuring a large expandable main compartment which has plenty of room for all your essentials and side panels that zip open in to full panniers to give you even more storage options. 600 Denier Polyester Dupont Teflon Coating for superb weather resistanceExpanding main compartment with two side panniers and a multifunction top pocketAerodynamic rigid foam walls3M reflective strip for safetyBuilt-in carrying handle, plus detachable shoulder strapQuickTrack mount for Beam Rack RXElastic top bungeesSafety light clip31x20.5x16.25cm7.31L755gThe bag comes with lots of great features including 3M reflective strip, safety light clip, elastic top bungees, optional rain cover, carry handle and shoulder strap for use off the bike.Please note: RX dual side frame is required when using RX TrunkBags with panniers on RX BeamRacks.