This set is very nice, the material is warm yet it is very breathable- as there is not internal material that would make the outfit overly warm (like a sweatshirt or sweatpants would have). However the fabric used to construct both the jacket and pants are comfortable, thick and a little glossy/shiny (but not too much though).
I love the blue of this jacket and pants set and find it to be a little unique- as I haven't seen clothing like this in this type of blue shade. It was the perfect amount of darkness and light IMO (as to where it fell on the spectrum with regards to the depth of the shade of blue)!
With regards to size- ordered it in my norm, a 2 X- and it fit perfectly- neither too tight nor too baggy. It fit comfortably and feels like an outfit I could wear anywhere (or just want to, because of how comfortable it is ;).
The best about this jacket and pants set- is that it feels like you have worn and washed it a ziilion times- but looks and feels brand new- and is brand new. My body sighs when I put each item on- like it is saying (to my brain), \\\\\\\"Nice, I get to wear this today. Good decision.\\\\\\\"
I just can't get over how good this outfit feels, and consider it one of my favorites in my wardrobe now (and I think my body totally agrees, honestly, my body relaxes when put on ;).