It's basically "what's available". 🤷
IF the State has money, and feels like spending it on uniforms rather than general graft, they MIGHT just pay for uniforms.
The Continental Congress? 🙄😄
The basic "clothing" I issue for newly painted regiments is a mixture of Continental cut uniform, if I have information, civilian clothing and hunting shirt.
If you want to outfit an entire regiment with hunting shirt, you would not be wrong. Nor would you be wrong to outfit a Continental regiment with civilian clothes, ditto.
Here's an interesting site about what was really worn.
EDIT: (I forgot the link…)
link
I had never heard of "bounty coats", until Brigade Games came out with Massachusetts Bounty Coat figures.
Think about this. As an inducement to impoverished young men, they would be issued a single simple "bounty coat" to enlist. And it worked.
Google Bounty Coat.
The Massachusetts regiments on my back burner will mix these Bounty Coat figures with the Eureka Marblehead sailor figures. Madness!
My earliest Continental regiments had one pose. All coats were the same color and cut.
When I realized what a scruffy lot they really were, well maybe I went too far. But I'm happy.
Oh! Don't forget that quite a few British regimental coats were captured at sea by Privateers. Keep them red, or cut off the facings, and dump then in a vat of blue, and get a truly disgusting vile shade of brown. Then sew the facings back on.