Iron Man Onesie

£44.99

  • Made from: flannel guaranteeing exceptional softness and warmth
  • Look: red body with gold panels on the chest and arms, arc reactor on the chest, Iron Man hood
  • Fit: roomy fit, long elasticated sleeves and a cosy hood, slippers not included
  • Versatility: Halloween, comic conventions, Marvel marathons, lounging
  • Care: machine washable and resistant 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

30% OFF ACCESSORIES

Complete your look

Iron Man Onesie

Iron Man Onesie

£44.99

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Red Claw Slippers

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Red Claw Gloves

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  • Made from: flannel guaranteeing exceptional softness and warmth
  • Look: red body with gold panels on the chest and arms, arc reactor on the chest, Iron Man hood
  • Fit: roomy fit, long elasticated sleeves and a cosy hood, slippers not included
  • Versatility: Halloween, comic conventions, Marvel marathons, lounging
  • Care: machine washable and resistant to everyday wear

Guaranteed heroic comfort from the Avengers universe in a Women’s Iron Man Onesie

Slip on the Iron Man onesie for adults and wrap yourself in the softness of flannel. Every detail of this all-in-one reflects the power of Tony Stark, bringing a superhero touch to your night-time wardrobe. With its precise finishes and design inspired by the iconic Marvel armour, this garment draws every eye and enriches your dreams with epic adventures.

Comfortable and cosy, this one-piece features a roomy fit with long sleeves and a hood, promising warm nights under the covers. Its relaxed, unisex style works for every body type, making this all-in-one an essential piece for all Avengers fans, men and women alike.

Men’s Iron Man Onesie like a cosy Marvel armour worthy of Tony Stark

Channel your favourite superhero for a night of rest. The plush texture and vivid colours of this adult Iron Man onesie set it apart from basic nightwear. It is a direct ticket to dreamlike adventures.

Give your nights an upgrade. Order yours now for evenings full of whimsy and comfort. It is the perfect gift for any Marvel admirer, a heroic addition to any pyjama collection.

Make every night a heroically restful adventure

The baby Iron Man onesie brings the very same design to the youngest member of the family. Anyone who loves this design will also enjoy the Captain America onesie. 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