SINGLE-DENSITY BASE LAYER, PE (PLASTIC) CAP SHIN SHELL: PLASTIC EXTERIOR SHELL WITH BRIDGE SUPPORT / HD (HIGH DENSITY) FOAM WRAP AROUND BOTTOM, CALF: SINGLE-DENSITY BASE LAYER WITH EXTENDED SINGLE DENSITY FOAM CALF WRAP, DOME CAP / KNEE WING: SINGLE-DENSITY FOAM KNEE WING, STRAPS: 2-PIECE STRAPPING SYSTEM-WRAP LOCK STRAP AROUND KNEE