Comfortable, secure fit with stepless width adjustment 3 adjustable vents provide airflow and help regulate the temperature inside the helmet for even more comfortable wear. Adapter systems for uvex face shields, earmuffs and lights that can be attached to the helmet. Thanks to the internal design, the uvex pheos goggles can be attached to the helmet with a clip. The size of the helmet can be adjusted individually with the ratchet wheel. Certified according to EN 397 with the following extra requirements: -30 C for protection in extremely cold conditions, MM=melted metal(splash).