The high impact resistant ABS shell has been engineered for maximum protection, while the padded dual-density foam liner works to absorb shock on impact. The Z5 2.0 features a BioDriâ„¢ padded inner liner to keep players dry and cool, and the wrapped ear pads add extra comfort and prevent wear and tear throughout the season. The Z52.0 Solid has been updated with a fresh new look, and meets the NOCSAE standard for all levels of play. It is available in Senior and Junior sizes.