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🧜♀️ Light up the party and make waves with every twirl!
The Koatobbor Girls Mermaid Costume is a lightweight, handmade tutu dress featuring multicolor LED lights, adjustable satin straps, and a stretchy crochet bodice designed for girls aged 3-8. Perfect for Halloween, birthdays, and themed parties, it includes a matching mermaid headband and requires 3 AAA batteries (not included). With a 4.6-star rating from nearly 2,000 reviews, this waterproof, easy-to-wear costume blends fantasy and comfort to make your little one the star of any celebration.






















| ASIN | B09QL9TC3C |
| Age Range Description | Kid |
| Apparel Fabric Stretch | Medium Stretch |
| Apparel Fabric Weight Class | Lightweight |
| Best Sellers Rank | #64,578 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #61 in Girls' Costumes |
| Brand Name | Koatobbor |
| Care instructions | Do Not Wash |
| Closure Type | Pull On |
| Color | Rainbow Led-light Purple |
| Customer Reviews | 4.6 out of 5 stars 1,967 Reviews |
| Fabric Type | Elastic,Satin |
| Fabric type | Elastic,Satin |
| Fit Type | Loose |
| Fit to Size Sentiment | Fits as expected |
| Garment Size Country | United States |
| Included Components | Dress, Headband |
| Material | Polyester |
| Occasion | Halloween |
| Pattern | Marine/Oceanic |
| Product Care Instructions | Do Not Wash |
| Size | 3-4 Years |
| Sleeve Length Description | Sleeveless |
| Special Features | Waterproof |
| Style Name | Fantasy |
| Target Audience | Girls |
| Theme | Halloween |
| character | Mermaid,Mermaid.your |
D**D
Twinkling tails and birthday smiles
This dress is pure enchantment. The purple bodice with starfish and flower details, combined with the light-up multicolor tutu skirt, makes it an instant favorite for birthday parties, Halloween, or just backyard mermaid missions. I love the bonus LED feature, which adds sparkle without being too bright—just enough to wow without overwhelm. The matching seashell headband completes the look and fits snugly (yes, it’s adjustable!), making the whole set feel like an undersea celebration in motion. At 4.6 stars across 481 reviews and 300+ purchases this month, it’s clearly delighting lots of little sea explorers. Ours was first scooped up in February and it still makes waves in the dress-up bin. If you’re looking for a costume that blends princess charm with magical flair, this one floats to the top—and it’s earned every shimmer.
C**W
Most beautiful dress
Definitely the show stopper for my daughter 6th birthday. She received compliments all day about this dress. Definitely a must buy and it did come on time. She is wearing I believe a 5/6 but it did have a stretch.
J**S
Super cute
My daughter loves this dress!
A**W
Great find
Loved this dress. I bought it for my grands bday. It fit perfect and the lights made the dress super fun
T**R
Very nice dress
Beautiful dress! My baby girl loves it
K**A
Magical mermaids
Maybe I’m living through my daughter just a wee bit with this cute little dress but she adores it too. The first one I ordered had a few snags on the front and back that made it look like an huge hole and some of the strings in the back were fraying which would have gotten worse had I not exchanged it. The exchange was easy and the second dress didn’t have a snag but still some frayed strings in the back which I just cut back and hoping for the best . If I would allow it , my daughter would live in this dress but I have yet to figure out how to clean it well besides spot cleaning . The headband is a little much for her but maybe she will like it in time . Overall if your little girl loves mermaids this dress is beautiful .
I**Z
Good
Good quality
A**N
Birthday dress
Beautiful and soft material. We love it
O**I
Good quality
My daughter was so happy
I**O
Bonito y brillante
Hermoso vestido, telas sencillas tipo tul suave pero bonito como disfraz, las luces led brillan bonito y duran
M**O
Precioso vestido
La talla es la adecuada, la tela resistente, a mi bb le fascinó su vestido y más cuando lo prendió
R**A
Bonito vestido y buen precio
La tallas vienen acorde a la edad, ni grandes ni pequeñas, tiene buena calidad en general, es obvio que no es una prenda que aguantara un uso continuo, pero en general es muy similar fotografía del anuncio, solo tomar en cuenta que la falda no viene en un solo lienzo son varios lienzos de colores y hay que estirarlos uno por uno para que luzca bien.
K**M
no es de buena calidad, la composición de la falda es de retazos de tela y se ven mal
Es bonito pero no es de tan buena calidad, la tela de la falda parece retaceria de tela y la parte de arriba en las primeras horas comenzó a deshilarse
Trustpilot
2 months ago
1 day ago