What are tan-through suits?

Answer by  Ginny (2251)

Bathing suits, or other clothing, made with a special fabric that allows ultraviolet rays to penetrate to the skin, allowing a suntan through the fabric.

Answer by  Deb43 (579)

Tan-through suits are clothing that is made to allow the UV rays from the sun to penetrate through and continue to tan your skin. This type of clothing expands the amount of tanning exposure your skin can get, taking less effort to sustain that perfect tan.