The ortlieb duffel bag small is for those adventurers out there who are searching for the extreme and expecting excellent performance the waterproof travel bag protects your possessions from water and dirt and can be easily converted into a backpack by using the padded handles as shoulder straps a long tizip zip allows you to get to your gear quickly internal straps compress the volume making more space for your stuff the base fabric is tough ps620c so its an extremely durable expedition