These easy-to-sew blouses are designed for fluid fabrics. To create your own custom look, each sleeve, collar or front opening can be easily placed into another view, making this pattern a true mix-and-match design. There are scores of options to design a blouse for your personal needs. A, B, C: Princess seams, slits at hem, button down closure, collar. A: Short sleeves. B: Gathered sleeve cap and flared cuffs. C: Three-quarter sleeves with slits.