Sun protective clothing

In addition, some textiles and fabrics employed in the use of sun protective clothing may be pre-treated with UV-inhibiting ingredients during manufacture to enhance their effectiveness.

In addition to special fabrics, sun protective clothing may also adhere to specific design parameters, including styling appropriate to full coverage of the skin most susceptible to UV damage.

Good examples of these fabrics contain full percentages[2] or blends of heavy-weight natural fibers like cotton, linen and hemp or light-weight synthetics such as polyester, nylon, spandex and polypropylene.

Using the Australian method as a model, the US standard was formally established in 2001, and now employs a more-stringent testing protocol that includes fabric longevity, abrasion/wear and washability.

When the Food and Drug Administration (FDA) discontinued regulating sun-protective clothing, the Solar Protective Factory (whose CEO chaired the ASTM Committee) took the lead in developing the UPF testing protocols and labeling standards that are presently used in the United States.

[4] In 1992, the FDA reviewed clothing that was being marketed with claims of sun protection (SPF, % UV blockage, or skin cancer prevention).

Factors that affect the level of sun protection provided by a fabric, in approximate order of importance, include weave, color, weight, stretch, and wetness.

ASTM D 6603 is a consumer format recommended for visible hangtag and care labeling of sun protective clothing and textiles.

Sun protective clothing and textile/fabric manufacturers are currently a self-regulating industry in North America, prescribed by the AATCC and ASTM methods of testing.