Chrome's Ivan Rolltop Messenger Pack is their medium-size rolltop messenger pack and just right to carry your day-to-day gear. It's made from weatherproof heavy-duty 1000-denier Cordura with a waterproof liner, waterproof zippers, unbreakable stainless steel hardware, sealed seams and a watertight rolltop closure for serious protection. Meaning, you can roll this through a hurricane or take it on a canoe trip and your stuff will come out dry. We've even seen it loaded up with ice and used as a cooler. External pockets let you organize and easily access your stuff. And, the ergonomic padded back panel with contoured straps provides excellent comfort and support on and off the bike.