Girl wearing a Pastel Sea Princess Unicorn Halloween costume with a rainbow pastel dress.
Pastel unicorn princess costume for girls featuring a shimmering tulle dress.
Girls unicorn princess Halloween costume with fluffy lavender ruffle details.
Magical pastel princess costume inspired by the sea and underwater royalty.

Pastel Unicorn Princess Halloween Costume

Regular price$36.99
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  • Features a shimmering pastel dress with fluffy off-the-shoulder ruffles and a full rainbow tulle skirt trimmed in soft lavender for an elegant sea princess-inspired look.
  • Lightweight, comfortable fabric allows for easy movement during trick-or-treating, Halloween parties, school events, stage performances, and imaginative play.
  • Perfect for Halloween, mermaid parties, ocean-themed birthdays, fantasy dress-up, photo shoots, and magical everyday adventures.
  • Costume Includes: Dress in girls' sizes 4T-8.
  • Add-On Options: Glitter shoes, sparkling tights, magic wand, and crown.
  • Adult supervision required. Not to be worn as sleepwear.
  • Our styles are designed for real life, most pieces are easy to care for and made with everyday wear in mind. For the most accurate and detailed care instructions, please refer to the label attached to your garment.
  • Products purchased from Mia Belle Girls should only be used under adult supervision.
  • See Return & Exchange policy
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