This sequin mermaid costume comes in 4 sizes: 3T (3-4 yr), Small (5-7yr), Medium (8-10yr), and Large (10-12 yr). This mermaid costume is perfect for “Under the Sea” themed parties and Little Mermaid Party. The metallic sequins add beautiful accents to this fabulous costume. Some parents have commented that their girls were swimming in the large size, so if you’re looking for a more skintight fit, then order a size down. If you’ll be wearing this costume over clothes, however, you may want to consider ordering up a size as it’s made to hang loosely

Our sequin mermaid costume is the ultimate party dress-up accessory. Get super fancy at your under-the-sea-themed party, or use it to add some fun to your everyday play! The long sleeves and skirt cover up any unwanted skin and provide a unique Halloween costume for under the sea themed party or princess soiree – sure to get lots of attention for you and your little one. We are excited to present this amazing Little Mermaid costume. This costume is made of the highest quality material and can be used for multiple purposes like a Halloween costume, dressing up, or even as a pajama set. We’re sure your little girl will love it.