Mid-Volume Settlement.The Mid-Volume Settlement backpack by Herschel Supply Co. captures a vintage style while having the modern features and construction to stand the test of time. This 17L knapsack is made from a durable 600D polyester and comes with exposed zippers that have pebbled leather pulls. The main compartment has a soft and striped fabric liner and is furnished with a 13' laptop sleeve along with an internal media pocket and port.