I found out I can’t get these garments shipped from some retailers because they are hazardous.
I went direct to the website of a highly rated vest and have ordered this one:

https://www.ororowear.com/products/women-heated-vest-black

Plus they offered 30% .mil discount which paid the shipping.

If you take the time it takes, it takes less time.
--Pat Parelli

American by birth; Alaskan by choice.
--ironbender