Wolfman Rolie Bag - Large (Yellow/Black) - 2012 Waterproof, dust-proof, sand-proof, mud-proof with durable waterproof vinyl that resists abrasion Universal Mounting Patch for a wide array of mounting options Non-skid, non-scratch pads protect your bike and your luggage from vibration abrasion Roll-top closure with no-wick webbing - what goes in dry stays dry 12.5 liters / 762 cu.in.