The Sling-Bag Metrosphere follows the latest trends: fashion has evolved from traditional fanny packs to fanny-pack-style shoulder bags or a combination of both. By detaching the shoulder strap, you have a separate 3-liter bag. In true Ortlieb style, the Sling-Bag Metrosphere provides your gear with full protection from the rain. Waterproof material and construction protect your gear from rain IP64 protection rating PS33 fabric: durable yet lightweight polyamide with polyurethane coating Roll-top closure Detachable shoulder strap Interior zippered mesh pocket