Tunic-style cockroach costumes usually have a center-front zipper. Jump- or jumpsuit-style adult pieces are typically stepped into. Many designs include mitts or gloves to cover the hands.
Many listings list 100% polyester as the textile material. Several tunic-style pieces also describe minky fabric with foam shaping and taffeta wings.
Many tunic-style listings show three-piece sets, while some adult dress-style listings list four pieces. The exact items included vary by listing, so check the product description to see which pieces are provided.