Tamrac SPX-757 - Medium Backpack Side Pockets, Set of 2, Black

For additional storage space for the larger Extreme Series and Expedition Series backpacks these foam padded side pockets make the perfect accessory. They have two way zippers beneath a storm flap for fast access, and will hold lenses, extra equipment, or personal items within easy reach. Large mesh exterior pockets provide easy access to maps and small items while on the move. They use the Modular Accessory Attachment System to fasten securely to the sides of Extreme Series

The Modular Accessory System (M.A.S.) offers additional accessories that quickly attach to any belt or Tamrac products that have the M.A.S. quick-attachment system. Using a security flap with a combination of hook and loop and snaps, these accessories are easy to attach and provide a fast and secure method for customizing many of the bags, as well as the M.A.S. padded Modular Accessory Belt. Whether it's extra lens cases, extra duffle bags, or a mobile phone case, you can now customize your Tamrac carrying system to match your exact requirements. Look for the M.A.S. compatible logo with products that work with the M.A.S. system.