The Simplicity Celtic Costume Sewing Pattern 8913 in sizes AA, XS, S, and M is perfect for creating a fancy dress outfit for adults. Specifically designed for males , this cut pattern from Simplicity offers a variety of sizes to suit different body types. Whether you are looking to make a costume for a special occasion or just enjoy crafting your own elaborate outfits, this pattern is a great choice for those interested in Celtic-inspired designs. Sleeve tatty.