PROTECTION: NIKE X-Sorb knee cap NIKE Air unit in knee Shin sling Wrap calf guard with Vent Armor foam and poly insert Perforated foam panels for lightweight breathability Segmented, removable liner FIT/MOBILITY: Anchor wrap strap across calf and knee Calf closure strap Multi-segmented design NIKE Memory foam Dri-FIT fabric lining NIKE Grip Print liner