Shoulder is made of Hypalon like LV MBAV. Front flap has magazine pouches built in. Magazine pouches can have elastic retainers attached:

Front Flap Closure:

Plate bags are secured to cummerbund on front with velcro.

Upper Front Plate Bag Admin Pouch:

Plate Bag Body Side:

Elastic stretch material like LV MBAV on body side.

Cummerbund Reinforcement:

Side of cummerbund stiffened with carbon fiber.