Made out of Denier 1050 Coated Invista® Ballistic Nylon, the 612 bags are waterproof and abrasive resistant. They have a hidden expandable section and they can go from a 5” depth to 10½”. The tops are made from our standard 11 ounce black leather and they have hard flat backs so they can attach with the quick release Easy Brackets. Turn signals and license plates must be off the side of the bike and they require low exhaust. They are designed to be mounted with the quick release Easy Brackets or permanently mounted to the side of the bike. If the bike has short shots Exhausts and they point at the bags the bags will be damaged by the exhaust.