No. No one will know unless you showing your plumber crack. Or if someone has X-Ray vision.
The classic (and useless) sexy Elf's underwear of RPGs XD.
I've just had the epiphany that Goblin Slayer is the only anime I've seen that has an Elf girl that's badonks are under a C cup.
There are tons of those. Elfs been flat is an old recurrent joke. At some point someone added the joke of an elf who WASN'T flat, and then the two stick.
Well, you give the goblins more to work with if you do wear it.
Think about it... no underwear for 2000 years...
It's that or the ChapStick.
Yes it is necessary