Sun hat

Wide-brimmed hat designed to shade face and shoulders from the sun

A sun hat is any hat or headgear specifically designed to shade the face, neck and shoulders from direct sunlight, usually with a circumferentially-protruding semi-rigid brim that can range from small to large, but as a general guideline around 4 to 7 in in width.

This keyword could refer to multiple things. Here are some suggestions: