Bat Onesie

£39.99

  • Fabric: ultra-soft flannel offering a feeling of warmth and well-being
  • Look: detailed hood with little ears, supple red-lined wings under the arms
  • Cut: loose, flowing cut with snug cuffs for a perfect hold, slippers not included
  • Perfect for: Halloween, fancy dress parties, cosy nights in
  • Machine wash: safe, easy care
  • 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
In stock, dispatched within 1-2 working days
Size Chart

30% OFF ACCESSORIES

Complete your look

Bat Onesie

Bat Onesie

£39.99

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£79.97 £67.97
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  • Fabric: ultra-soft flannel offering a feeling of warmth and well-being
  • Look: detailed hood with little ears, supple red-lined wings under the arms
  • Cut: loose, flowing cut with snug cuffs for a perfect hold, slippers not included
  • Perfect for: Halloween, fancy dress parties, cosy nights in
  • Machine wash: safe, easy care

Women’s Bat Onesie to plunge into the nocturnal mystery of the cave

Enter an enchanting world with our bat onesie for adults, a nocturnal costume that combines mystery with absolute comfort. Inspired by the bewitching charm of the winged creature, this soft, plush costume carries you into the fascinating universe of the creatures of the night. Its ultra-soft flannel fabric evokes the warmth of a peaceful cave, while its flowing cut lets you hang upside down with ease, like a real bat ready to take flight into the darkness.

The details are what make it: a hood adorned with little ears and soft, supple wings. Perfect for a fancy dress party, Halloween or a themed event, it combines originality and comfort. Slip it on and let the nocturnal creature slumbering within you take flight in a whirlwind of softness and mystery.

An upside down adventure full of freedom in a Men’s Bat Onesie

With the adult bat onesie, you rule the nocturnal world. This warm, light costume blends realism and fantasy. Its soft, breathable flannel wraps you in soothing warmth, perfect for fully enjoying your Halloween evenings or fancy dress parties. Every movement evokes the grace of a bat ready to hang upside down, suspended in the calm of an imaginary cave.

The striking design of this costume and its supple wings guarantee a style both mysterious and comfortable. Take on the role of a creature of the dark and let the night reveal your wild side. Order your outfit today and become part of nocturnal legend.

Bring your whole tribe together

Pair it with the kids bat onesie and turn a quiet night in into a family moment. The pumpkin onesie makes a perfect partner for a matching duo. More spooky designs are waiting in the Halloween onesies collection.

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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Adult size chart (measurements in cm)

SIZEHEIGHTCHESTSHOULDER WIDTHSLEEVE LENGTHONESIE LENGTH (EXCLUDING HOOD)
S144 - 1531164650127 - 130
M154 - 1631204853137 - 140
L164 - 1731245056147 - 150
XL174 - 1831285259157 - 160