The fabric to this sweater is a typical knit weight. The dying process made it a bit stiff but I think it will soften up as you wash it.
Fit advise: I typically wear a 1X and found the 1X/2X to be a bit too oversized. Id advise to size to the smaller end. Example if you typically wear a 2X stick to the 1X/2X
Fabric Content: 50% Polyester, 18% Acrylic, 17% Viscose, 15% Nylon
1X/2X: Bust 52", Waist band not stretched 40", Length back of neck to hem 29"
2X/3X: Bust 54", Waist 42", Length 29"