187 Killer Pads Pro Knee (Black, Large) 187's Pro Knee is the ultimate in knee pad protection V-22 Dual Density Foam - Specially formulated to provide the perfect combination of cushion and protection for multiple hard impacts Lock-In Cap System - Secures and aligns removable cap in correct position Light-weight fast drying interior lining, seamless interior finish for ultimate comfort, ballistic nylon with industrial-weight stitching ensures durability, Three-Panel construction for reliable performance, open back design for excellent fit and quick on/off