At 2250 cubic inches, the Fac Track™ makes for a great 3-day pack with a large main compartment for all of your essentials. Designed primarily for Forward Air Controllers, the F3F pack features a large front and a zip-around top opening optimized for carrying PRC-117 type radios. Two large exterior front pockets for quick-access and MOLLE webbing around the pack gives you the ability to add any pouches and accessories you might need.