Hello Kitty Onesie

£44.99

  • Material: ultra soft flannel for maximum comfort on cool evenings
  • Design: vibrant pink detailing, a kawaii face and the character’s iconic bow
  • Comfort: elasticated long sleeves and a cosy hood for extra warmth
  • Ideal for: girls nights, sleepovers, fancy dress parties, lounging
  • Care: machine washable, keeping its softness with effortless upkeep
  • 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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Complete your look

Hello Kitty Onesie

Hello Kitty Onesie

£44.99

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  • Material: ultra soft flannel for maximum comfort on cool evenings
  • Design: vibrant pink detailing, a kawaii face and the character’s iconic bow
  • Comfort: elasticated long sleeves and a cosy hood for extra warmth
  • Ideal for: girls nights, sleepovers, fancy dress parties, lounging
  • Care: machine washable, keeping its softness with effortless upkeep

Women’s Hello Kitty Onesie adds a touch of Japanese sweetness

Fall under the spell of the irresistibly cute Hello Kitty onesie for adults. Designed for anyone looking to add a little kawaii flair to their wardrobe, this piece blends iconic Japanese culture with a fresh, modern twist. With its soft white and pink palette and the famous bow, it catches the eye at once and turns downtime into something charming.

It does not only look sweet. It is crafted for absolute comfort. Made from ultra soft flannel, it keeps you wonderfully warm on chilly evenings. The relaxed, roomy fit offers complete freedom of movement, while the hood and elasticated cuffs add an extra layer of snugness for a peaceful night.

Float on a cloud of kawaii softness in a Men’s Hello Kitty Onesie

Imagine yourself wrapped in our adult Hello Kitty onesie, feeling as though you are floating on a cloud. This all-in-one is not simply nightwear. It is an invitation to unwind, recharge and indulge in pure comfort. Every detail, from the plush texture to the thoughtful finishing touches, is designed to brighten your mood.

Add these pyjamas to your collection and start enjoying evenings transformed by comfort and style. Easy to slip on and machine washable, they offer fuss free care that fits effortlessly into everyday life. Order yours now to treat yourself, or someone special, to an adorable and heart warming gift.

The perfect bow for the whole family

Young fans can join in with the kids Hello Kitty onesie, cut in the same style for children. The Kuromi onesie shares the same playful spirit and works well for group outfits. Finally, the adult onesies collection covers every other design for grown-ups.

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