Kids Santa Claus Onesie

£34.99

  • Fabric: soft red flannel with fluffy white trim
  • Details: jacket with white collar and hem, black belt, matching trousers with white cuffs, red Santa hat with a pompom
  • Easy on: jacket and trousers that go on in seconds, relaxed cut for playing and dancing
  • Ideal for: Christmas morning, nativity plays, family photos, Christmas parties
  • Care: machine washable, easy to keep bright
  • 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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Kids Christmas Onesie

Kids Santa Claus Onesie

£34.99

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  • Fabric: soft red flannel with fluffy white trim
  • Details: jacket with white collar and hem, black belt, matching trousers with white cuffs, red Santa hat with a pompom
  • Easy on: jacket and trousers that go on in seconds, relaxed cut for playing and dancing
  • Ideal for: Christmas morning, nativity plays, family photos, Christmas parties
  • Care: machine washable, easy to keep bright

Sleigh bells ring for the Girls Santa Claus Onesie on Christmas Eve

Once upon a snowy Christmas Eve, a little helper decided that waiting for Father Christmas was not enough and that this year the North Pole needed a junior deputy. This Santa Claus onesie for kids turns that wish into a real costume, a soft red flannel jacket edged with fluffy white trim, a black belt around the waist, matching red trousers with white cuffs and the classic pointed hat topped with a pompom. One look in the mirror and the reindeer would surely take orders from this young Father Christmas.

Christmas morning feels brand new in a Boys Santa Claus Onesie

Slipping into kids Santa Claus pyjamas like these makes every December morning feel like a premiere. The flannel jacket keeps little shoulders warm while the presents are opened, the belt adds that proud official touch, and the hat stays on for the school play, the family photo and the visit to Nan. Christmas parties, nativity plays and Christmas Eve dinners all welcome a tiny Santa with open arms. Add this festive costume to your basket now and let your little one hand out the presents this year.

Ho ho ho for the whole family

A baby brother or sister can ride in the sleigh with the baby Santa Claus onesie. Little helpers will find a perfect partner in the kids elf onesie. Reindeer, gingerbread and candy canes wait in the Christmas 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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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