What if Batman's underwear is inside, not outside?

Boys' Justice League Logo 5pk Underwear : Target

Batman and Superman wear underwear outside of costumes - Gen. Discussion - Comic Vine

Batman Boys Performance Boxer Brief Underwear, 4-Pack, Sizes 4-10

Return of Underwear-Outside-Trousers Explained in Batman #53 [SPOILERS]

Batsuit - Wikipedia

Batman and Superman wear underwear outside of costumes - Gen. Discussion - Comic Vine

Superman: 20 Secrets Only True Fans Knew About His Red Trunks

Return of Underwear-Outside-Trousers Explained in Batman #53 [SPOILERS]

In all seriousness, in universe how do you think Batman justifies the whole underwear on the outside of the costume look? : r/BatmanArkham

Why was it that in the olden days superheroes like Superman and Batman wore their underwear outside of their pants? - Quora

Why Do Superheroes Wear Their Underwear on the Outside?

Why does Batman wear his underwear on the outside? - Quora