Slinky fabrics such as silk, satin and charmeuse are inviting to the touch and imparts a soft glow all over for a radiant look. Plus they graze your curves -- not hug them -- in the most womanly way.
Visible panty lines are un-sexy. So when you're wearing a soft, flowing design like Diane Kruger, go for seamless undies and bra to avoid any VPL.