Why can not hats be exposed to sunlight

The exposure of hats to sunlight can cause fading, discoloration, and damage to the fabric or material of the hat. This can occur due to the ultraviolet (UV) rays from the sun, which can cause a breakdown of the fibers or dye in the hat. Additionally, prolonged exposure to sunlight can cause the material to become brittle, which can lead to the hat cracking or becoming more susceptible to tears. To protect hats from sunlight damage, it is recommended to store them in a cool, dry place and avoid exposing them to direct sunlight for extended periods.