Naos Helbo Photochromatic

Provides clear vision in changing weather and light. The photochromic lens adjusts automatically, meaning you don't have to switch between light and dark lenses as often during wooded sections, open trails, or cloudy conditions. This feels calm and practical, especially during long sessions.

Remains breathable during high exertion. The open frame allows plenty of airflow, meaning the glasses fog up less quickly during climbs, tempo runs, or warm weather. At the same time, the field of view remains wide and unobstructed without much distraction at the edges of the frame.

Works particularly well during intensive training sessions and fast trails. During high heart rates or changing conditions, you will notice that the stable and lightweight feel helps you stay focused without constantly adjusting your glasses. The ventilation remains pleasant, especially when you start to sweat more.

Undecided between a closed-shield mask and an open model? Choose the Helbo if ventilation and versatility are more important than maximum protection against wind or mud. For extremely rough weather, closed models often offer better protection.