Is the Unsuit Unsuitable?

To the Editor: A new type of bathing suit has recently been released for sale this summer. Known as the Unsuit, it is made of 100 percent cotton with a special weave that permits the ultraviolet “tanning” rays of the sun to penetrate. This allows the wearer (as the advertising contends) to “tan where the sun doesn't shine.” The manufacturer claims that the suit has a protection factor equivalent to a sunblock 6 (meaning that six times the ultraviolet radiation causing a sunburn by direct exposure of unprotected skin is required to cause a sunburn through the material). In.