Product Details + Spine: Molded foam with poly insert - Integrated spine Kidney: Molded kidney - ErgonomicHip: Molded PE insert - Tapered designThigh guard: Molded PE protectionBelt: Single density cover beltAdjustability: Stretchable inseam gusset with cinching belt closureShell: 400D nylon with overlayLiner: Hydrophobic mesh