Need holster for convoy S21A & What 21700s fit this light?

I want to use a new Convoy S21A for work. What holsters are narrow and not to big but let this fit inside it.

I’m really wanting some 21700 power!

ETA - a review on aliexpress says the tube is a bit small so some 21700s don’t fit. What 21700s are on the slightly slimmer size?

I wasn’t sure which Convoy holster will fit the best, so I ordered both of them. I’ll let you know which fit in a few weeks when they arrive.

Hi, did you find a holster for the S21A? Thx!