I imagine that it is supposed to make the belt sit more comfortably but what is it called?
I want to recreate this costume and I'm looking for infos.
I want to recreate this costume and I'm looking for infos.

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A "Sash" - a long strip or loop of cloth worn over one shoulder or around the waist, especially as part of a uniform or official dress.
Thank you so much!
You're welcome.🫡
''Belt cloth'' ?
or:
''fictional decoration''
Looking closer I find similarities to Batman's outfit.
So it also could be: ''outer underwear''.
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I know you mean the green thing. I saw this question earlier but I don't know what it's called either.
It could be called several names a cummerbund, a waist sash or a waist cloth.
Could be a cumberbun.
It does look similar but it looks like cumberbun is meant for fancy outfits 🤔
Could also be a "waistcloth"
Waist sash, obi, or fabric belt.
I just see belts?
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