why do kpop idols wear these under pants under their shorts

Suho, Lee Sang-yi talk about traveling together in 'Besties in Wonderland' - The Korea Times

How do K-pop idols keep their private area safe when wearing very short pants? - Quora

Low-rise pants - Wikipedia

6 K-Pop Idols Who Have Recently Slayed The Pink Hair Look Recently - Kpopmap

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Chung Ha Comeback Interview: 'Eenie Meenie,' New Music, ATEEZ Collab

When Did Everyone Stop Wearing Pants? How The No-Pants Trend Took

A Delhi Girl, Zoi Is The First Indian To Participate In A Thai Show, 'Chuang Asia

What Tights Do Pop Stars like Taylor Swift and Beyoncé Wear?