system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5:How does wearing more clothes that cover more areas of skin keep you cooler when outside in the sun?

I work outside all day so I wear a long sleeve turtle neck Under Armor under my work clothes. Many people I work with who work in the offices inside ask we why I wear my attire but all I can tell them is it keeps the sun off my skin. Preventing skin cancer and keeping me cooler, but idk how to explain HOW its keeping me cooler.
gpt
Because the clothing you have on is blocking the suns rays from directly affecting you and putting a barrier up that blocks them.

Clothing on your skin blocks up to 95% of the UVA/UVB radiation that the sun puts off into our atmosphere. That high intensity radiation, along with the visible and infrared radiation are all forms of energy that are easily stopped by layers of clothing.

When you wear long sleeve clothing across your body, the cloth heats up and disperses that energy before its absorbed by your skin and body, so you pick up less heat over time.