Where do you find clothes for Iplehouse F.I.D male dolls ?

FID aren't popular with Chinese collectors, so Taobao is sadly pretty low on stuff

SartoriaJ is a huge resource for clothes though. Etsy has some bits and pieces too. This person has both EID and FID and sometimes does stuff for their FID (Taobao shop available too): https://instagram.com/littleoverbearingceo
I also had luck with Taobao sellers that allow for custom sizes!

 

I'm told that clothing for Raccoon dolls also fits FID. I know that works for the women, less sure of the men.
You might compare measurements.

 

Jack's wardrobe at present is just SartoriaJ-- I got him one good outfit and then I've been able to sort of personalize it with jewelry, but yeah, these boys are HARD to shop for. But, there are a couple of patterns for FID from designs by jude on etsy! (if that link to one of them works-- it's a bit of a pain because they're in the same category as the big boys so you have to check). So if you are or know a sewist, that's an option.

 

And on the same note as above - Antique Lilac has free clothes patterns for the FID boys! https://www.antiquelilac.com/tutorials.html So - again - if you can sew, or get someone to do it for you, those are available too!
I could have sworn there was a thread looking at what fits FID, but I might be misremembering, as I can't find it either - maybe it was for Raccoondoll instead.

 

I've found that slim SD shirts actually fit my FID model body pretty well. They're usually a little loose in the stomach, but that's easy enough to tailor out of most shirts by simply sewing the side seams tighter myself. The shirt I've currently got my boy in, I actually bought from StardreamerStudios for one of my F60 Motion boys. I didn't change the fit at all for it, because I like how well the current fit prevents that awkward lumpy look that shirts sometimes get over jeans.

Please forgive his hair. His wig hasn't arrived yet, so I've improvised.

Spoiler: Additional photo with more of a side angle