This Jacket is pretty unique in my mind. Here in the USA, hi vis jackets are all made of plastic. This jacket gives me confidence that I will not melt and that I will be seen. Being Safe,Warm, & prepared are important to me when I work outdoors as I do. I got a medium/tall and it fits the way a slightly oversized medium should, which turned out to be perfect for me. Thank you Refinery Workwear.