These four bags have identical appearances and features but differ in shape and size. The bags are shaped to fit round top tanks, angled tanks, wedge-shaped tanks and odd-shaped/dual sport tanks. They are available in multiple attachments, including Velcro-base pad/front strap, magnetic or four-corner strap-on. All tank bags feature a clear map holder, front external pocket, hard shell glass case, rain cover rear external pocket, carrying handle and all-around zip expansion for additional capacity.