Answer (1 of 10): Easy…. Don’t wear panties.
How to prevent panty lines when wearing tight jeans/leggings, and how can you hide them if they do appear - Quora
What is the proper way to wear leggings? - Quora
Do you wear anything under leggings? - Quora
When men wear super tight fitting pants, shorts, etc., do they have issues with underwear lines or what? - Quora
How to avoid showing pantylines while wearing tights or leggings - Quora
What love is not wearing nothing while I wear leggings? - Quora
What is the best way to make noticeable panty lines? - Quora
Is it okay to wear red leggings in public? - Quora
How to avoid panty lines when wearing leggings - Quora
What is the best underwear to wear with leggings? - Quora
How to avoid camel toe in tight leggings - Quora
10 Ways to Avoid Panty Lines in Workout Clothes - wikiHow, lines pants
What is the reason that women do not wear pants or leggings with shorts as often as they used to? - Quora
What are the risks of using leggings without panties? - Quora