Lifestyles Direct and Kiniki both offer bikini swimsuits that leave no tan lines. It's not the cut of the swimsuit that erases the tan lines; it's the material. Both firms offer swimsuits in a variety of styles, for both men and women, which uses this new tan-through material.
The patented fabric has microscopic pores that allow the sun's rays to pass through. It's the equivalent of wearing all-over sun protection that averages SPF10. The fabric is printed, which deceives the eye and keeps the suit from appearing see-through, wet or dry.
The microfiber suits are made of nylon and spandex to fit almost any body type comfortably. The material is soft and silky to the touch, but strong enough not to snag on rocks or other rough surfaces. The tiny pores allow the suits to dry faster than other suits and let the skin underneath breathe. Increased air circulation also cuts down on bacterial growth.
Since these suits provide very little sun protection, sunscreen is strongly advised. Kiniki offers a sunscreen spray that may be applied directly through the suit. Made by Sol De Janeiro, the spray is absorbed through the micropores in the fabric. Thick sunscreens applied under the suit may clog the pores, decreasing the sun-tanning properties of the fabric.