I hate thongs, but do people actually care about panty lines? - The Globe and Mail
How To Avoid Unwanted Panty Lines?
Tight Underwear Can Darken Bikini Area - Laser Clinic in Singapore
PHCOMRICH New Women's C Style Invisible No Panty Line Strapless Panties Underwear with Nipple Covers (Black, Small) : Amazon.ca: Clothing, Shoes & Accessories
7 leggings that aren't see-through and won't show underwear lines