The Butterick Pattern B6419 Misses' Button-Back Blouses-Size 6-8-10-12-14 will help you stitch a range of trendy blouses at home. You can use the pattern to sew blouses with back button closures, front and back darts and also add sleeve variations. B: Neck tie. C: Contrast neck tie, sleeve, and yoke. D: Collar, contrast upper sleeve, yoke and purchased lace. Note: No provision provided for above waist adjustment.