Brooks Suffolk Rear Travel Pannier with Roll Top Blue Sign Certified- The Suffolk Rear Traveler Pannier is made using water resistant, Blue sign certified textiles and vegetable tanned leather Roll Top Closure- The Suffolk features large front pockets, side pockets and elastic net Ortlieb System- The Ql2 attachment system makes mounting quick and easy Shoulder Strap- The detachable shoulder strap allows you to easily take the Suffolk with you off the bike Four Way Stretch- Additional Volume is added with the unique, four way stretch design