Pack Street Creek 20L. Black Diamond Street Creek 20 is the ultimate backpack with quick access to the main compartment.. With best-in-class durability, thanks to its haul bag-inspired design, and urban features built for commuting, the Street Creek 20 is ready to hit the town. The Street Creek’s dedicated external 15” laptop sleeve adds versatility for the working stiff, while the burly haul bag construction holds up to day-in, day-out commutes. The quick access main compartment is a holdover from its haul bag-inspired design, while an internal security pocket stashes your keys and wallet safely when dropping into the gym. The added shoulder straps and back panel provide maximum comfort while commuting, while adjustable sternum straps and waist belt make for a secure fit when cruising the city.