I’m not sure of the brand but I got mine off of Amazon about 7-8 years ago. I don’t wear it often but when I do I shear it as a second layer. It’s pretty snug but man ole man does it make a difference. Thermal top, vest, long sleeve shirt, and decent jacket and that kept me warm as I needed in Missouri last year. Temps didn’t get over 30 for 3 days straight and I was fine.