Alpinestars Overland Backpack - Black231278126 Product Description 39 liter capacity Adventure Touring backpack with spacious interior compartments to carry large or bulky items. Backpack has an ergonomic design for rider comfort with a robust material construction for durability Clever compression design means that if the front compartment is empty, it will flatten with the compression straps to lay flat against the main compartment Large, compressible front compartment allows the bag