More Than Just Fabric – How UPF Clothing Beats Sunscreen at Its Own Game
You slather on SPF 50, but an hour later, you're sweating it off. What if your shirt did the heavy lifting instead? Let’s talk about UPF clothing – the ultimate armor against UV rays.
HISTORY / ORIGIN
For most of human history, clothing offered incidental sun protection – the thicker the fabric, the better. But nobody measured it. The real push came from Australia and New Zealand in the 1990s, where skin cancer rates were alarmingly high. Researchers developed the first standard for measuring fabric UV protection, leading to the AS/NZS 4399 standard in 1996. The term "UPF" (Ultraviolet Protection Factor) was born. Unlike SPF, which measures only UVB protection, UPF measures both UVB and UVA. In the early 2000s, the American Society for Testing and Materials (ASTM) adopted similar standards, and major outdoor brands began manufacturing clothing specifically designed to block the sun. Today, UPF clothing is recommended by…
