McCall's 4286 vintage sewing pattern, dated 1989. 

Misses' Top & Pants - Top for Stretch Knits Only.

Pullover top has extended shoulders, shaped hemline and contrast ribbed knit neckband. Pull-on pants with side seam pockets have elastic in waistline casing, front pleats and belt carrier.

Size   X SMALL (6 - 8) , SMALL (10 - 12):

Bust  (30 1/2 - 31 1/2), (32 1/2 - 34) inches / (78 - 80), (83 - 87) cm

Waist (23-24), (25 - 26 1/2) Inches / (58 - 61), (64 - 67) cm

Hip    (32 1/2 - 33 1/2), (34 1/2 - 36) Inches / ((83 - 85), (88 - 92) cm

Pattern is uncut and factory folded. Envelope has some edge wear and a small water mark.

More '80s patterns here:

https://allthepreciousthings.com/collections/1980s