MiUSA PF Flyers I scored off eBay a few months back for probably $25. 

My days: blending together, spent at this tiny home desk   At least I've got this great IH-526SV

I'm putting my vote in for the IH-803-WH.  I'm guessing they're considered under since I've read that white (in general, minus tees) don't usually sell terribly great.  Well I love there's pants!  The double knee gives them a subtle difference from regular pants.  And the color with generous fit makes them good for warmer weather: twas 98 in Seattle on Sunday (which is HOT for us!  Broke a record) and these performed fine. 

Update on my Grailed IHJ-32: I would say quite a success and I'm very happy!  As I said above, this should fill a good hole (which I didn't know existed until I saw this coat lol) in my jacket collection.  Arm cuff openings are a tad on the larger side, but I can get around that.  I do like the smaller waist opening tho, as I always keep the bottom button undone, even if I have the other done.  Condition is great; as you can see from pics there was some honey combing on the arms.  I cold washed/medium heat dryed this since it was preowned and I think that gave some of the stress points (see pocket pic) a tab more of a "fade".  Not sure how long the previous owner had it but they didn't wear it out by any means, it's aged great and has loads more life (of course).  Cheers!

Thanks @Alex : so same material, just different proportions of blue to white?  Yea, I see that the 91 is extinct BUT that workshirt w/ snaps is soooo unique!  Bring it back? 

Q for those that have both or have handled both: this versus IHSH-91?

Got it off of Grailed.  Guy selling it said he really liked it but rarely wore it due to being too small.  Wasn't necessarily in the market, but couldn't resist the more I thought about it.

Just copped.  Should fill a nice non-leather/wool, non-indigo type X jacket.  Thanks again @neph93

@neph93 with the super quick reply; much thx 

How does the tag size correlate to the size chart?  Is a tagged 36 an XS and then goes from there 38 S, 40 M, etc?