The Fornix uses in-mould construction for light weight & combines it with an Aramid Bridge that spreads forces over a larger area
...The Fornix uses in-mould construction for light weight & combines it with an Aramid Bridge that spreads forces over a larger area to help disperse impact energy. The adjustable ventilation provides excellent air circulation; a size adjuster helps to fine-tune the fit. Size guide: Small (51-54cm) Medium/ Large (55-58cm)X-Large (59-62cm)