do clothes made of 100% cotton block photons?
Discussion
cotton tshirts let through the most light across all wavelengths, including IR (700–1000 nm) where up to 60–90% gets through.
That makes them the second-best option (after white linen) for absorbing sunlight while staying covered
All clothing blocks Photons depending on the material, weave density, color, thickness and fiber composition
White linen shirts block the least amount of UV light with 25.4% UVA transmittance.
Plain cotton lets through the most light across all wavelengths, including IR (700–1000 nm), where up to 60–90% light gets through.
That makes them the second-best option (after white linen) for absorbing sunlight while staying covered
