. . Lightweight cellular Protium™ foam pad design for maximum movement and protection. . . 3mm Electrum XK8™ hard shell front and back panels feature a unique Damascus® 3-panel flex design for optimum movement, fit and comfort. . . Included Aluminum Stab Plate Insert #AP20 for the chest portion offers ultimate protection from stab and projectiles (non-ballistic). . . Hard shell back plate offers a raised center for optimal spinal cord protection. . . Electrum XK8™ plate with shock absorbing Protium™ foam covers both top of shoulder and upper arm. . . Shoulder and side adjustable for increased flexibility and range of movement Protected with a durable tight-weave polyester mesh on the outside. . . Pocket on interior back side to hold a hydration system (sold separately). . . Adjustable reinforced straps with Velcro®. . . Velcro® areas to secure ID name plates (sold separately). . . Non-ballistic. . . Size range: MD/LG: 38”-46” (96.5 – 117 cm), XLG: 46”-52” (117 – 132 cm), XXLG/XXXLG: 52”-60” (132 – 152 cm). . .