It is a compact version of our popular Photo Sling Pack and is designed for a compact digital or film SLR with zoom lens attached up to 4" long, another small lens or flash and accessories. The sling pack design is versatile to carry like a backpack, but can be easily accessed by sliding the pack around to the front. The front pocket features Tamrac's U.S. patented Memory & Battery Management System™ (patent pending) that uses red flags to identify available memory cards from ones that are used up. Other features include: Speed Flap™ Top, adjustable, foam-padded dividers, and an accessory pocket in the top for lens cleaning paper. Add optional Tamrac accessories using the attachment slots for our Modular Accessory System™ (M.A.S.™) products to customize this sling pack.