Simplicity Sewing Pattern 9969 (A) Children's and Misses' Reversible Aprons is a reversible below knee length cross-back aprons with buttoned shoulders are easy to sew using a single main pattern piece. Each apron has two patch pocket options - one single large pocket, or two smaller pockets, depending on your mood or cooking needs. All aprons are cut crosswise; see envelope for complete cutting layouts and more information.