B6333 | Butterick Patterns. Shirtdress with princess seams: Shirtdress has pointed collar, collar and front bands, fitted bodice, princess seams, button-down closure skirt variations with front pleats, and side pockets. A: Sleeveless and bias armhole facings. B: Three-quarter length sleeves with cuffs. A, B: Full gathered skirt, skirt back pleats, and double-layered sash. C: Narrow hem on cap sleeves.