UPF clothing (short for Ultraviolet Protection Factor) refers to apparel that’s specifically designed and tested to block ultraviolet (UVA and UVB) radiation from the sun. It protects your skin from sunburn, skin cancer, and skin aging caused by the sun. You do not need to apply sunscreen to areas of the body that are covered by UPF clothing. You should still apply sunscreen to exposed areas of the body that are not covered by UPF clothing.

The UPF rating measures how much UV radiation (UVA and UVB) can penetrate fabric and reach skin. UPF 50+ means the fabric allows only 1/50th (or 2%) of UV rays to pass through. Meaning 98% of the sun’s rays are blocked. All Helioshield fabrics have a UPF 50+ rating, which is the best UPF rating possible.