Vent Armor foam in chest and spine, perforated poly inserts in spine. Nike air unit sternum protection. HD foam inserts in chest and spine. Anatomical covered shoulder caps. Poly-reinforced bicep guards, perforated foam panels for lightweight breathability. Reinforced arch protection, removable abdominal protection pad. Multi-segmented, multi-panel upper body design. Adjustable segmented free flex bicep guards. Nike memory foam, DRI-FIT fabric lining, Nike grip print liner.