Kids' Onesies

At SillySanta you'll find over 8 matching styles of kids onesies – also known as kids' all-in-ones or jumpsuits – rated 4.9 out of 5 from over 100 reviews. Match the whole family for this year's Christmas card! From the cuddly Pink Teddy Bear and Grey Teddy Bear designs to the playful Reindeer and Candy Cane onesies, there's a favourite for every little one in our collection.

Our kids onesies: teddy bear styles and festive prints

The range splits neatly into two moods. First, the all-year teddy bear onesies, our most-loved styles, in three colours: the Brown Teddy Bear Onesie, the Grey Teddy Bear Onesie and the Pink Teddy Bear Onesie. They're made from a plush teddy fleece with just the right amount of give, the kind of thing kids describe as feeling like a giant hug. Then there's the seasonal side: novelty Christmas designs like the Reindeer Onesie and the Candy Cane Onesie, made for cosy December evenings and matching photos by the tree.

Most styles are 100% polyester, and some are made from 100% recycled polyester, so you can pick a soft fleece that's a little kinder to the planet without losing any of the warmth. Whichever print your child gravitates towards, the fabric is the same soft, huggable teddy fleece they'll want to live in. These are part of our wider family of onesies for grown-ups and kids alike, so the little ones can match the rest of the house when the mood takes them.

Soft teddy fleece that feels like a giant hug

The thing parents notice first is the fabric. It's a thick, brushed teddy fleece, soft on the inside, with no scratchy seams to bother sensitive skin. There's a gentle stretch built in, so kids can climb, roll and race around without feeling boxed in. It holds its warmth well too, which makes these a genuine winter favourite rather than a one-evening novelty, the sort of thing they'll reach for on cold mornings, after the bath, and on every lazy weekend in between.

Sizing kids onesies from toddler to pre-teen

We size these for a wide age range, from little toddlers all the way up to pre-teens. On-site you'll find 1-2Y, 2-4Y, 4-6Y, 6-8Y, 8-10Y and 10-12Y, so there's room to grow whether you're shopping for a two-year-old or a ten-year-old.

The fit is a regular fit, so the simplest rule is to choose the size your child normally wears. If they're between two sizes, or in the middle of a growth spurt, size up: a touch of extra room means more comfort, easier movement and a onesie they'll get more wear out of before they grow out of it. With six sizes to choose from, it's easy to find a fit that's cosy now and still works as they shoot up over the next year.

Built for active, wriggly kids

Active kids are hard on their clothes, and these are made with that in mind. The soft-but-sturdy teddy fleece takes plenty of wear, and the gentle stretch means it moves with them instead of holding them back. They're quick to get into as well, one style has you dressed in about ten seconds, which is exactly what you want when a small person has decided they're getting changed right now. Comfy enough for lounging, hard-wearing enough for the rough and tumble that follows.

Easy to wash, easy on busy parents

None of this matters if the onesie can't survive a normal week, so we've kept care simple. A gentle machine wash at a maximum of 30°C does the job. Turn the onesie inside out, wash it with similar colours, and skip the tumble dryer, ironing, bleach and dry cleaning. That's the whole routine. The fleece keeps its softness and its shape wash after wash, so a onesie that gets worn (and dropped, and spilled on) most days will still feel lovely months down the line.

Mix and match with the family

Because these sit alongside our grown-up styles, the whole family can pad about in matching teddy fleece if they fancy it. It's a light touch here rather than the main event, but on a lazy Sunday or a Christmas morning, a few matching onesies make for a very cosy (and very photogenic) household.

From soft teddy bear classics to festive reindeer and candy cane prints, our kids onesies are made to be lived in: warm, playful and ready for whatever the day brings.