Conforms to EN 50365, LD, MM. The lightest, strongest EN 397 helmet, weighing only 285g*. ABS shell weighs under 300g, around 20% lighter than standard safety helmets. Meets both LD (lateral deformation) and MM (molten metal) tests. Ventilation reduces helmet temperature by an average 2-3degrees. International slots conform with Surefit attachments. 6-point terylene cradle harness system provides unrivalled comfort. Unique 1-2-3 point harness depth setting system gives 3D precision fitting, the most precise fit available on an industrial safety helmet. * dependent on model