This is a very good quality jacket, nicely shaped and an attractive blue. I ordered a small and it was a little too snug for me, especially with layers on underneath, so sadly I had to return it. If a medium had been available I would have ordered it.
Purchased in the sale, ready for next season, so not yet tested, but this is a gorgeous jacket and really lovely quality.
I always find TNF sizing a bit snug on me, and in anticipation of extra layers, and vigorous skiing, I upgraded from medium to large, and the jacket is a perfect fit.