There is no fabric tag; I would guess it is a wool blend.
The lining is probably acetate.
Both garments are fully lined.
The dress has a center back plastic zipper and has pockets! The dress also has princess seams and A-line skirt and a crew neck.
The jacket has a convertible collar and set-in sleeves, with small shoulder pads.
This ensemble is amazing! The colors are so good. Peak Mad Men! Can you tell I’m still binging Mad Men?