Vanguard BIIN50BLACK BIIN offers it all - good looks, lightweight design, reliable gear protection and organization and standout features that make life easier. BIIN is a lightweight backpack, sans the bulkiness of standard backpacks. It boasts a large gear capacity and numerous pockets for accessories. BIIN is all about providing fast access, with organized compartments that securely hold your gear. Other features include numerous pockets and clips for additional accessories.