Vintage circa 70s IVY slim leg jeans, size 12, extremely soft, comfortable

IVY slim leg stretch jeans, circa late 70s, extremely soft and comfortable. Size 12= 28" waist, 29.5" inseam. 6.5" leg opening at ankle, left to right measurement. Machine washable and dryable. Very lightly worn in circa 70s, but in storage some of denim faded, mostly at fold-mark, and there is a barely perceptible discoloration under right waistband (please see photo.) Side zipper, tapered legs.