SPF for Your Clothes? UPF and Why it Matters
UPF is SPF for your clothes. It stands for Ultraviolet Protection Factor, and rates your clothes on how well they protect your skin from harmful UV rays. UV Standard 801 is the most trustworthy UPF testing method. So whether you spend time in the sun for leisure, sport, or work, it’s important your clothing protects you from harmful UV rays that could lead to skin cancer.