Simplicity 6421 Vintage 1984 Sewing Pattern Child's Pull-On Shorts and Pullover Tops in Two Lengths: Front pleated shorts have waistband and elastic back. Tops have square neck and side slits. V. 1 and 2 have shoulder yoke, extended shoulders and short sleeves. V.2 has self strap detail. V. 2 and 3 are shorter length. V. 3 has shoulder straps.