The largest, stiffest, and burliest MTX-series bag, the Topeak TrunkBag DXP uses a unique material process to enhance weather resistance and features expandable storage on the top and sides. In addition to the expandable top section and rear water bottle holder, the side panels expand to full panniers, maximizing capacity Integrated water bottle holder Carry options include removable shoulder strap and carry handle Hook-and-loop strap system securely attaches to any bike rack Pannier deployment requires a beam rack with side frames attached or a traditional rack with struts to prevent panniers from contacting rear wheel Reflective details for enhanced visibility Specs Best Use Cycling Gear Capacity (L) 22.6 liters Gear Capacity (cu. in.) 1,380 cubic inches Material(s) 600-denier polyester Dimensions 14.1 x 9.8 x 8.5 inches Made in Taiwan. Strap mount type.. Free pos w.m. Sabah Sarawak add Rm20. More details pls see picture. If my phone off,pls email me,maybe I oversea,thx. My shop in teluk intan,Pekan baru,around Pasar Raya TF. Email:edwind38001@hotmail.com Tel:012-572 9321