Technical-Upgrades-New-internal-padding-with-increase-thickness-for-enhanced-comfort-&-greater-stability-in-professional-use-New-shape-of-the-outer-shell-in-the-chin-area-which-combined-with-a-wider-&-softer-base-edge-compared-to-the-previous-model-reduces-interference-with-any-neck-protector-used-&-decreases-risks-of-impact-traumas-thanks-to-its-shock-absorber-function-Outer-shell-SSL-Super-Super-Light-in-fibreglass-Kevlar-Carbon-3-shell-sizes-Ventilation-system-IVS-Integrated-Ventilation-System-with-channels-formed-directly-in-the-outer-shell-Interior-breathable-Dri-Lex-with-sanitizing-treatment-Inside-paddings-completely-removable-&-washable-Retention-system-double-D-strap