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 FIT/MOBILITY: Multi-segmented, multi-panel upper body design Adjustable, segmented free flex bicep guards NIKE Memory foam Dri-FIT fabric lining NIKE Grip Print liner