70s Can't Miss Tan Cream Colorblock Long Sleeve Maxi Dress Size 12 Polyester
THere is no fabric tag but feels synthetic, possibly polyester
Very faint discoloration line down the cream part on the skirt.
Tagged vintage size 12 but please see measurements to ensure a proper fit. Measured flat unstretched. Double the measurements for complete circumference.

Armpit to armpit 20 "
Waist 14.5"
Hips 23"
Length 60"
Back across shoulders 17
Sleeve 24"

This item is sold from an excellent, highly rated vintage seller in Seattle, WA.