The two-piece construction of this handlebar pack for globetrotting bikepackers, is made up of a lightweight, waterproof dry bag with roll-top closure at both ends, and a harness made from durable materials with a bungee cord and gear loops on the top that makes loading and unloading quick and easy during short rest breaks, because the dry bag can be detached while the harness stays on the bike. The durable straps on these bike bags feature hook and loop fasteners for secure positioning, and the spacers make it possible to mount them on a variety of frame sizes and tube diameters, including carbon bikes.  Disclaimer: Sand, dust and incorrectly packed bags can make the paint in contact areas become dull or scratched over time. To avoid any chafing, you can protect the frame or rack with foam inserts or protective film before attaching bags or panniers.