TheMisterT and I watched a British comedy series called Plebs early in the Pandemic and got a kick out of the first couple seasons. In one episode, there’s a joke about a coat that is 100% yak and later a coat that is 15% yak.
Annnnnnnnywaaaaaaay, we have lots of percent yak and 15% or 100% something jokes so when I spotted this fabric on Spoonflower while looking for a weasel print… well, I had to make something!
I used this pattern (Kwik Sew 4201) which is discontinued and purchased from an Ebay seller. I cannot recommend this pattern. I am not an expert garment sewer by any stretch of the imagination, but I am an experienced garment sewer and can say with confidence that this one is lacking. Poor or missing directions, lack of notches where every other pattern would have them (didn’t pose a problem, but was a clue to quality), and a kind of crude finish on the inside in places. But it’s done and I’m pleased with it and think he will get a kick out of it, even if it is mostly a WFH item of clothing. Also a bit of a WTF item of clothing, right? 
The zipper pull was my addition and is grosgrain ribbon and embroidery floss from stash.
Now my excitement is renewed for him to have it on Saturday!