Abstract: The invention provides a thin, barely visible to invisible strap particularly useful for imparting invisibility without sacrificing the support imparted by such straps on underwears suitable for use on clothing of transparent material or on backless, strapless, and sleeveless clothing. The strap is made of a thin, clear, colorless, polyurethane material having the desired elasticity, flexibility and softness of a strap while providing sufficient support to the cups thereby preventing the breasts from sagging.