Its is pretty thin with no lining, colors are true to the picture. I ordered wine and black one and I love the way it looks.
The material is stretchy and somewhat see through. Not to the point you can see underwear or something like that. The waist band is comfortable and stays in place.
I am 58 and usually wear 8-10 size, not very curvy - Medium fit me just right with length just below my knee.