As noted before, leather vest patches marking motorcycle club affiliations or military enthusiasts display a club logo, a patriotic emblem or graphics depicting rebellion. They are usually made from tough leather or reinforced PVC, and sewing or riveting allows the patches to withstand harsh conditions. Different cultures place different meanings onto them: Western bikers interpret them as loyalty as well as rank insignia; global streetwear culture views them as anarchical or avant-garde art capturing the spirit of subversion with numerous brands seeking to monetize from niche markets willing to pay for these pieces of custom art.