What is UPF?

Sun Protection Factor, or SPF, is a measurement of how well sunscreen prevents solar radiation exposure onto your skin. A good number for excellent protection is 30 SPF as long as it is a broad spectrum sunscreen, protecting against both harmful UVA and UVB solar radiation. Read more about SPF and UPF. [...]

Ultraviolet Protection Factor, or UPF is a measure of how much solar radiation gets past fabric, on to your skin. It is measured with a standardized test that determines a UPF factor from 0 to 50.  UPF 50 is considered excellent protection by the Skin Cancer Foundation in its article on Sun-Protective Clothing. Read a [...]