All seams are electronically heat welded and are made of 100% waterproof and durable 24oz tarpaulin PVC UV coated saddlebags. There are no breakable plastic buckles on the mounting hardware, which is made of aircraft quality aluminum.  two lightweight saddlebag liners for easy removal and packing of items are included. When empty, the bag's shape is held by a removable stiffener, and the bag is supported by a hard interior rear plate. Pad for contact with the rack that can be replaced. The compression straps can also be used to secure the Nelson-Rigg dry roll bags, which are held in place by four fast release cam buckles and two pull webbing. 15" (38.1 cm) long x 8" (20.3 cm) broad x 14" (35.6 cm) height, with a capacity of 27.5 Liters per side.