McCall's 7570; ©1981; Misses' Pants. Pants A of border print fabric (no side seams), have waistline with mesh shirring elastic. Pants B with elastic in waistline casing, are open at sides below thighs and tie at ankles; purchased belt is optional. Pants C, open and wrapped at sides, have elastic in front waistline casing hooked in back; pants back is gathered into waistband which ties in front.