A construction helmet is a hard hat that is worn by workers on construction sites to protect their heads from falling objects or accidents. Full definition
One attacker wore a white construction helmet, another sported a long red beard. (businessinsider.com)
Clad in construction helmets and orange vests, workers contracted by the EPA tear up yards, remove dirt, fill it back in and lay new sod. (scientificamerican.com)
Goombas reappear in Super Mario Odyssey, where they can be found in the Sand Kingdom wearing sombreros, the Lake Kingdom wearing bridal veils, the Metro Kingdom wearing yellow construction helmets, the Wooded Kingdom wearing explorer hats, the Luncheon Kingdom wearing chef hats, the Seaside Kingdom wearing pirate hats, and the Snow Kingdom wearing Santa hats. (mariowiki.com)