Kids Batman Onesie

£39.99

  • Fabric: ultra-soft flannel for maximum comfort and guaranteed warmth
  • Design: grey body with black sleeves, yellow bat logo on the chest, black cape and pointed ears on the hood
  • Fit: roomy for optimal freedom of movement, ideal for playing and sleeping without restriction
  • Perfect for: Halloween, superhero birthday parties, World Book Day, bedtime
  • Care: machine washable, easy to maintain, stands up to everyday wear
  • Ultra-soft fabric | Warm and comfortable
  • Pyjamas and costume | Two in one
  • Any occasion | Bedtime, parties, film nights
  • Gift-ready | One they’ll actually wear
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Size Chart
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  • Fabric: ultra-soft flannel for maximum comfort and guaranteed warmth
  • Design: grey body with black sleeves, yellow bat logo on the chest, black cape and pointed ears on the hood
  • Fit: roomy for optimal freedom of movement, ideal for playing and sleeping without restriction
  • Perfect for: Halloween, superhero birthday parties, World Book Day, bedtime
  • Care: machine washable, easy to maintain, stands up to everyday wear

A cape of dreams for heroic Gotham adventures in a Girls Batman Onesie

Let your daughter don the cape of her favourite hero with our Batman onesie for kids. Designed for long nights of adventure under the covers, this soft flannel one-piece turns every bedtime into a thrilling saga in Gotham. Featuring a snuggly hood, it delivers unmatched comfort while sparking the imagination of your little defenders of justice.

Crafted with meticulous attention to detail, this outfit is not just nightwear but a real hero’s costume. Its roomy fit guarantees total freedom of movement, letting your child dream without limits while staying warm and toasty.

Boys Batman Onesie equips your little hero for legendary nights over Gotham City

Picture your son’s smile as he discovers his new night-time companion: the kids Batman pyjamas, which not only keeps him warm but transforms him into his favourite hero. Every element is designed to enrich your little one’s evenings and make bedtime exciting and eagerly awaited.

Give your child dream nights full of adventure. Order this one-piece now and watch him soar off into sweet night-time escapades.

Assemble a family team of superheroes

Complete the family set with the baby Batman onesie, made for the smallest fans. The kids Superman onesie shares the same spirit and makes a fun costume for a sleepover duo. Finally, browse the whole kids onesies collection for more playful costumes.

Frequently Asked Questions

They’re made to keep you warm on the sofa through autumn and winter, so yes, they’re cosy. The relaxed fit lets air move around, though, so you won’t get that stuffy feeling you get from tight pyjamas.
Machine wash at 30°C on a gentle cycle. Turn them inside out and pop them in a mesh laundry bag to protect the hood. Skip the tumble dryer and the iron. They air-dry quickly and fluff right back up on their own.
Yes, every onesie we sell is unisex. The roomy cut works for men and women alike, our kids’ styles fit girls and boys just the same, and our baby sizes are cut the same way for everyone. Just check the size chart to find your fit.
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Kids size chart (measurements in cm)

SIZECHILD'S HEIGHTCHESTSHOULDER WIDTHSLEEVE LENGTHONESIE LENGTH (EXCLUDING HOOD)
3 - 4 years88 - 10288414182 - 85
5 - 6 years103 - 11592424392 - 95
7 - 8 years116 - 125944347102 - 105
9 - 10 years126 - 137964449112 - 115
11 - 12 years138 - 148984554122 - 125