Brook Fishing Equipment's Vest Patches are made in the U.S.A., and are designed to be the most versatile patches available while securely holding flies. They feature a silicone insert that has slits to securely hold flies in place, but can also be used as a non-slit insert that easily outperforms foam. On the back is a marine grade Velcro for mounting, also included is the tab which allows you to hang the Vest Patches from a lanyard or retractor.