The largest bag in the Iron Rider Modular Luggage System, the Main Bag is perfect base bag to support the addition of the The primary and largest bag that anchors the Iron Rider Motorcycle Luggage System program. Combine two MLS – MB’s and get over 3.50 cubic feet of storage space! Plus, use the flexibility of to equal-sized bags to mix ‘n match various combinations depending on your riding requirements. Rigid construction allows additional stacking of other MLS bags when more storage is needed. Includes auxiliary storage on sides for easy access of items during riding and a shoulder strap for off-bike use. A rubber base protects against water when set on the ground. Interior storage compartments for added convenience. Combine with other pieces in the MLS system for even more storage opportunities.