The tubes in the Koroyd system also help cool wearers by dramatically increasing airflow; traditional hard hats simply trap a lot of heat inside the hard outer shell. Research from Koroyd claims ...

The best running hats use lightweight, sweat-wicking, and quick-drying fabrics to keep you cool and comfortable ... you’d be hard-pressed to find a better hat. Why it made our list: Ciele ...

These Bump Caps are designed for environments where hard hats or helmets are not required ... Intended to keep users' heads cool while working, this cap is designed with a lightweight mesh ...