Mario Onesie

£44.99

  • Fabric: flannel, ideal for staying nice and warm
  • Style: red top with blue dungarees and yellow buttons, red cap hood with the letter M
  • Comfort: roomy fit for total freedom of movement
  • Occasions: gaming nights, Halloween, couples costumes, conventions
  • Washing: easy to care for and resistant to frequent machine washing
  • 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

Mario Onesie

Mario Onesie

£44.99

Red Claw Slippers

Red Claw Slippers

£21.99 £15.39

Red Claw Gloves

Red Claw Gloves

£17.99 £12.59

£84.97 £72.97
Save £12.00
Free delivery

Free
Delivery

Secure payment

Secure
Payment

Support 7 days a week

Support
7 Days a Week

  • Fabric: flannel, ideal for staying nice and warm
  • Style: red top with blue dungarees and yellow buttons, red cap hood with the letter M
  • Comfort: roomy fit for total freedom of movement
  • Occasions: gaming nights, Halloween, couples costumes, conventions
  • Washing: easy to care for and resistant to frequent machine washing

The Nintendo adventure of the two Italian brothers in a Women’s Mario Onesie

Step into a fantastic world with the Mario onesie for adults. Designed for die-hard Nintendo fans, this soft, plush all-in-one wraps you in comfort after a long day. Picture yourself jumping from level to level in your favourite games while staying nice and warm under your covers.

Inspired by the universe of Mario and Luigi, the design features iconic elements that carry the playful spirit of your favourite games into your night-time wardrobe. Made from flannel, this onesie promises not only style but also lasting comfort. It allows optimal freedom of movement for all your sleepovers or late night gaming sessions.

Men’s Mario Onesie transforms you into a little mushroom powered plumber

Our adult Mario onesie is not just nightwear, it lets you revisit your favourite adventures. Its snuggly texture guarantees warm, comfortable nights. It is perfect for recovering after long hours of questing through the many worlds of Nintendo.

This one-piece deserves a spot in your collection. Add it to your wardrobe today and make sure you are warm and stylish for your next games nights. Join the community of fans who have already chosen to combine style, comfort and passion for Nintendo games.

Collect as many coins as you can as a family

For a family photo in matching outfits, the kids Mario onesie brings this look in a smaller size. The Luigi onesie is the ideal match for a costume duo. Finally, browse the whole adult onesies collection to find another design to love.

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.
My Onesie tote bag

Check out in just a few clicks

Add your favourites to your basket using the icon in the top right corner of your screen, fill in your details and place your order.

  • Free delivery
  • 1-2 day dispatch
  • Secure payment
  • Support 7 days a week
×

Adult size chart (measurements in cm)

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