Adult Christmas Onesies

Christmas onesies make your outfit of the day a no-brainer. One zip and you're dressed — for the couch, for the tree, for the party where everyone else overthought it. Our adult Christmas onesies come in more than eighty designs across soft polar fleece and plush sherpa, all built with the details that separate a real onesie from a costume: a two-way zipper, deep functional pockets, a proper hood and sizing from XS to 4XL. Want the whole crew in one print? See our family Christmas onesies.

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Adult Christmas Onesies

What are you wearing? If you ask us that question during the month of December, there's only one answer coming out of our mouths: a Christmas onesie. If the weather outside is frightful, we'd like to be enveloped head-to-toe, thanks — and even if it isn't, it's still our preferred way to dress. Holiday onesies are just so simple: you don't have to think about anything. It's one zip and no stress, which in the holiday season is more meaningful than ever. There's much to do and no time to worry about what to wear. An adult onesie, it is.

Fleece, Sherpa and Light-Up: The Onesies We Make

Most of this collection is soft polar fleece — the everyday workhorse, warm without overheating you indoors, and the base for our biggest prints like the Blue Reindeer Jumpsuit, the Gingerbread Man and our fair isle Rudolph designs. Sherpa styles like the Rudolph Sherpa Jumpsuit trade a little breathability for a genuinely plush hand — these are the ones people refuse to take off. Then there are the specialty builds: light-up onesies like the Festive Fireplace Light Up Jumpsuit, interactive designs like the Christmas Tree Toss Game Jumpsuit that turns your torso into an actual game, and our officially licensed onesies — Rudolph, Bumble and A Christmas Story among them.

Christmas Onesies vs. Christmas Pajamas

People search for both and mean slightly different things, so here's the honest split. A Christmas onesie is one piece, zips up the front, has a hood and pockets, and is built to be seen — you can wear it out of the house, to a party, to a tree lighting, and plenty of people do. Christmas pajamas are a two-piece set built for sleeping and lounging, and many of our styles are now cut in a new luxe fabric that's noticeably softer and cozier than standard PJ knit. If you want to fall asleep in it, take the pajamas. If you want to make an entrance in it and then fall asleep in it anyway, take the onesie.

Details That Actually Matter in a One-Piece

You've never seen a Christmas onesie like ours — the difference is in the parts people forget to design. A two-way zipper means you can unzip from the bottom, which sounds like a footnote until you've had to fully undress in a bathroom stall. There are real pockets, deep enough for a phone and a drink you shouldn't be holding. The hood is lined and holds its shape. The cuffs are ribbed so cold air stays out. And the cut is loose through the body on purpose — an onesie you can only wear standing up isn't a onesie, it's a costume.

More Seasonal Options

Your Christmas onesie a little too cute for you? We hear you. Thankfully we have an entire selection of less cutesy: our ugly Christmas sweaters. That's what the people call them, at least — we think they're absolutely stunning. See for yourself. For another holiday outfit option you can piece together yourself, check out our selection of Christmas outfits. The possibilities are endless.

More Cozy Goodness

For when your treasured Christmas onesie needs a break in the washing machine, there are a few similar options to keep you feeling festive nonetheless. Our Christmas pajamas will have you equally comfortable all night long — so comfortable that no promises you won't immediately fall asleep. They're to be worn while rewatching your favorite Christmas movie. Wear your own print solo or match your slumber buddy: see our men's Christmas pajamas and women's Christmas pajamas to find all the comfort in one place.

Matching the Whole Crew

One person in a Christmas onesie is a choice. Six people in Christmas onesies is a photograph people actually keep. Our family Christmas onesies put the same print in adult, kids, toddler and baby sizes so nobody gets the off-brand version, and our couples Christmas onesies handle the two-person case. Because we design and manufacture our own prints, we can size a single design across an entire family — which is exactly what most retailers can't do, and why matching sets from elsewhere never quite match.

When to Order

Order earlier than feels necessary. Onesies are made in limited runs, and the popular sizes on our best-selling prints tend to be gone before the first weekend of December — which is when most holiday parties actually happen, not the week of Christmas. Orders ship in one day, with overnight and guaranteed delivery available at checkout if you've cut it close.

Adult Christmas Onesies - FAQ
What's the difference between a Christmas onesie and Christmas pajamas?
A Christmas onesie is a single piece that zips up the front, with a hood and pockets, cut loose enough to wear out of the house — to a party, a tree lighting or a bar crawl. Our Christmas pajamas are a two-piece set designed for sleeping and lounging, many now made in a new luxe fabric that's noticeably softer. Onesie if you want to be seen in it, pajamas if you want to sleep in it.

Do you offer Christmas onesies in kids and baby sizes?
Yes. We offer our Christmas onesies in kids and baby sizes, and we expand that selection every year, because we know how fun matching can be during the holidays. The easiest way to match a whole household in one print is our family Christmas onesies. If you love matching and want more of it year-round, our Halloween collection does the same thing in kids and baby sizes.

What are your Christmas onesies made of?
Most of our adult Christmas onesies are soft polar fleece; select styles are made in plush sherpa. Both are chosen for the same reason — warmth you can sit in for six hours without overheating. We hand-select the fabric on every product based on where it's actually going to be worn, which in this case is a comfortable night in or a casual holiday function. The exact fabric content for each style is listed on its product page.

What size Christmas onesies do you offer?
We offer XS through 3XL in women's Christmas onesies and XS through 4XL in men's. We do our best to be inclusive of every size and shape so everyone can stand out at the next celebration — it's part of our Fun For All promise. Fit is loose through the body by design; if you're between sizes, take the smaller one, because there's already room built in.

Can I go to the bathroom in a Christmas onesie?
Yes, and this is the single most common question we get, so let's answer it properly. Every adult onesie has a two-way zipper, which means you can unzip from the bottom up rather than peeling the whole thing off in a bathroom stall. It's a small design decision that makes an enormous practical difference over the course of a party.

Are they too warm to wear indoors all night?
Our fleece styles are the safe bet for a long night indoors — warm, but breathable enough that you're not sweating through a party. Sherpa styles are noticeably plusher and warmer, so they're better for a cold house, an outdoor tree lighting or a couch marathon than for a crowded room. Unzipping partway is a legitimate temperature control strategy and we fully endorse it.

Can I wear a Christmas onesie out of the house, or is it just loungewear?
Out of the house, absolutely — that's what they're built for. The prints are designed to be seen, the pockets hold what you'd normally need a bag for, and the fit is cut to move in. Plenty of our customers wear them to holiday bar crawls, office parties, ski lodges and tree lightings. If you want something strictly for sleeping, our Christmas pajamas are the better call.

Do you have licensed Christmas onesies?
Yes — our official licenses include Rudolph, Bumble and A Christmas Story, and you'll find each of them in one-piece form in this collection. Everything else you see here is our own original design, drawn by our in-house team, which is why you won't find these prints anywhere else.

How do I wash a Christmas onesie?
Machine wash cold, inside out, and tumble dry low or hang to dry. Fleece and sherpa both hold up well, but high heat is what mats the pile and takes the plush out of a sherpa style. Light-up onesies have a removable battery pack — take it out before it goes anywhere near water.

Is my Christmas onesie order eligible for free shipping?
Yes. All orders over $75 ship free, and most of our adult onesies clear that on their own. Orders ship in one day, and overnight and guaranteed delivery options are available at checkout if you're running close to a party date.