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.

When extra security is desired, these Tamrac Modular Accessory System (M.A.S.) Raincovers provide it with a double waterproof-coated PowerGrid nylon that protects everything except the back of the backpack and the harness. Folded in their pouch, they attach to any of the M.A.S.� backpack attachment points.

Medium:

For Tamrac Photo Backpack Models 757, 767, 777, 5256, 5259, 5375, 5575 and 5577
External Dimensions: 5" W x 1" D x 8" H inches 13 x 4 x 22 cm
Weight: 7 oz. (198 g)
Color: Gray with black case

Large:

For Tamrac Photo Backpack Models 777, 787, 5258, 5577 and 5578
External Dimensions: 5" W x 2" D x 8? H inches 13 x 6 x 21 cm
Weight: 9 oz. (255 g)
Colour: Gray with black case