TheTopeak MTS TrunkbagDXPis one ofTopeak'slargest weather resistant trunkbags. This bag is based on the popular Topeak MTX DXP, but now features Velcro mounting straps. Thedual molded side panels combine with flexible 600 denier fabric to form a semi rigid, weather resistant bag. Divided main compartment and side panels expand for extra storage capacity. Rear water bottle holder lets you carry more water on extended trips. Attaches with integrated straps. Pannier deployment requires a beam rack with side frames attached or a traditional rack with struts to prevent panniers from contacting the rear wheel.Topeak MTS Trunkbag DXP FeaturesMaterial: 600 Denier Polyester Dupont Teflon Coating for superb weather resistanceCompartments: Expandable, divided main compartment with two side panniersPadded foam walls protect loadElastic top bungees3M reflective strip for safetyBuilt-in carrying handle, plus detachable shoulder strapCompatible with all rear racksSafety light clipCapacity: 22 ... More info