The fabric’s UPF 50 rating means that it allows for 1/50th of the ultraviolet radiation from the sun to pass through the fabric and reach your skin. A white cotton tee shirt is usually only UPF 5 which means that about 20% of the sun’s ultraviolet radiation that causes skin cancer will penetrate your skin.
How much light can pass through a garment depends on the type of fabric used, its thickness, color and age. When clothes are wet, their protection is reduced.
Protect Yourself from the Sun
By taking simple precautions, you can reduce the risk of skin cancer and skin damage.
Look for clothing with a UPF rating. Some clothing is labeled but many brands produce clothing that has added UV protection.
Add sun-protecting laundry detergent to your cycle. Add colorless protection by adding sun-protecting detergent to your clothing.
Cover your neck and face with a wide-brimmed hat. These areas are particularly vulnerable to sun damage.
Limit your sun exposure. Keep in the shade between 11am and 3pm, when the sun is at its most intense.
Apply sunscreen to any areas that are not protected by clothing. Apply sunscreen underneath your clothing if it is not enough protection.
Even on cloudy and cold days, use sun protection. Clouds can easily block the sun’s UV-rays, which can cause skin damage and burns.
Clothing that offers protection from the sun is an effective way to reduce the risk of skin damage. However, not all clothing provides the same level of protection. Look for clothing that has ultraviolet protection. This includes garments with a UPF rating and the Skin Cancer Foundation seal.
