Simplicity 6872; ©1985; Boys' Pull-On Pants or Shorts and Unlined Jacket or Vest: Pull-on pants or shorts have front yoke and pockets., fly front zipper, double elastic waistline casing and optional back pocket (wrong side of fabric shows when pants legs are worn rolled up.) Unlined jacket and vest with side seam pockets have double elastic lower casings.. Jacket with snap tape front closing and trim has sleeves with elastic casings. Vest V. 2 and 3 have tape trim. V. 2 has snap front closing and purchased applique. V. 3 with front snap tape closing has optional tape epaulettes. All garments have top stitching.