To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyses reviews to verify trustworthiness.
this model "Mens Whirlbird IV Interchange" sizes big. like almost 2 sizes big. i own another Columbia interchange jacket and this XL size that was sent to me was more like a 2XL or even 3XL. I can practically wear my old jacket under this one.
I can't speak too much to experiencing warmth since any breeze would pass right up the jacket and semi-inflate it. The inner liner looks like it would provide more insulation as it resembles a small puffy-coat, but it is too thin to hold in much heat. The reflective layer is inside the liner compared to being inside the shell of my other jackets so that gives the liner a bit more value, but that won't do you much good unless you are being somewhat active.
Pit Zips are not meshed which i find awkward, but i'm glad that they're there. Otherwise, this makes for a good all-weather coat for the fall, or an active winter/ski coat if you can get the size right.
as mentioned in the other reviews, try to order at least 1 size smaller than you are, even if you know your size in Columbia jackets.