How does polyester fabric resist fading from reflected UV (water/snow)?

Polyester fabric is renowned for its exceptional resistance to fading, even when exposed to UV rays reflected by water or snow. This durability is primarily due to the synthetic fibers' inherent properties and advanced manufacturing techniques. Polyester fibers are engineered to absorb and disperse UV radiation, preventing it from breaking down the fabric's dye molecules. Additionally, many polyester fabrics are treated with UV-resistant coatings or dyes that further enhance their ability to withstand prolonged sun exposure. When UV rays reflect off surfaces like water or snow, the intensity of the radiation increases, but polyester's robust structure and protective treatments ensure that the fabric maintains its color and integrity over time. This makes polyester an ideal choice for outdoor gear, swimwear, and winter apparel, where exposure to reflected UV light is common.