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Plus-size onesies: the styles that go up to XXL and 3XL

Plus-size onesies: the Family Fleece Onesie in Men 3XL, the Monster Pyjamas and Pumpkin Onesie in XXL, the Monkey Kigurumi in XL up to 189 cm.

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  • plus size kigurumi women
  • mens 3xl onesie
A huge brown bear making its way between the rocks of a forest, looking towards the camera
Photo: Charles J. Sharp / Wikimedia Commons (CC BY-SA 4.0)

A plus-size onesie, in this shop, goes up to Men 3XL: that's the largest size of the Family Fleece Onesie, designed for 180 to 185 cm and 90 to 100 kg. The Monster Pyjamas and the Pumpkin Onesie go up to XXL, and the Monkey Kigurumi stops at XL, but an XL designed for up to 189 cm. No style comes in 4XL or above. Here are the largest sizes of each style, taken from their product pages, followed by how to measure yourself and what to know before ordering.

The largest sizes, style by style

Three styles go beyond XL: the Family Fleece Onesie (up to Men 3XL), the Monster Pyjamas and the Pumpkin Onesie (up to XXL). The others stop at XL, with very different guidelines from one product page to the next.

StyleLargest sizeGuideline on the product page
Family Fleece OnesieMen 3XL180–185 cm, 90–100 kg
Monster PyjamasXXL170–180 cm and over
Pumpkin OnesieXXLusual size, unisex cut
Monkey KigurumiXL178–189 cm
Star Monster KigurumiXL177–185 cm
Shark KigurumiXL165–178 cm, 70–85 kg

The Giraffe Kigurumi, the Crocodile Onesie, the Monster Bunny Faux Fur Pyjamas, the Big Mouth Monster Pyjamas and the Cable Knit Teddy Bear Onesie also stop at XL, with no body measurements on their product pages (the cable knit gives the garment's own).

The letter isn't enough: the XXL of the Monster Pyjamas starts at 170 cm, whereas the Men XXL of the Family Fleece Onesie is aimed at 175 to 180 cm and 80 to 90 kg. Compare your height, and your weight when the product page asks for it, with the table for the style you've chosen.

Men 3XL: the Family Fleece Onesie

The Family Fleece Onesie is the only style in 3XL, and the only one whose men's sizes combine height and weight. It's a one-piece onesie in thick, plush fleece, with a roomy cut and a full-length zip. It comes in five animals: panda, ginger tiger, brown bear, dinosaur and capybara.

SizeHeightWeight
Men L165–172 cm63–69 kg
Men XL170–175 cm70–79 kg
Men XXL175–180 cm80–90 kg
Men 3XL180–185 cm90–100 kg

For women, this style's women's sizes stop at XL, designed for 160 to 168 cm and 60 to 70 kg. Beyond that, the men's sizes take over: it's the same onesie, with the same animal.

In XXL: the Monster Pyjamas and the Pumpkin Onesie

The Monster Pyjamas and the Pumpkin Onesie are unisex and both go up to XXL. The first is chosen by height, the second by your usual size.

The Monster Pyjamas, from S to XXL

The Monster Pyjamas are a one-piece onesie in thick 100% polyester fleece flannel, with a hood featuring horns, little ears and big embroidered eyes. They come in nine colours: green, blue, red, black, white, yellow, purple, beige and pink.

SizeYour height
Sunder 150 cm
M150–160 cm
L160–165 cm
XL165–170 cm
XXL170–180 cm and over

The product page gives no weight. It describes a deliberately roomy cut and advises taking the larger size if you're between two.

The Pumpkin Onesie, from S to XXL

A heap of big, knobbly orange pumpkins in front of straw bales

Photo: Captain-tucker / Wikimedia Commons (CC BY-SA 3.0)

The Pumpkin Onesie is made of orange coral fleece, soft, thick and light, with a pumpkin embroidered on the front pouch pocket and a shaggy monster-head hood. Its product page gives no measurements: it describes a unisex cut, long sleeves and straight legs, and advises taking your usual size, or the next size up if you're unsure. Our article on the adult pumpkin onesie covers it in more detail.

For the tallest: the Monkey Kigurumi and the Star Monster

If you're taller than 185 cm, the Monkey Kigurumi in XL is the only style designed for up to 189 cm. Its sizes are based on height alone: S for 148–158 cm, M for 158–168 cm, L for 168–178 cm, XL for 178–189 cm. Between two sizes, the product page recommends the larger one.

A chimpanzee sitting in the undergrowth of a rainforest, arms crossed over its knees

Photo: Giles Laurent / Wikimedia Commons (CC BY-SA 4.0)

It's a brown fleece onesie with a beige front panel, a long tail at the back and a monkey-head hood. The product page describes it as very roomy at the hips, with press studs all the way down the front, so you can pull it on over pyjamas or a T-shirt.

The Star Monster Kigurumi, in black fleece, also goes up to 185 cm in XL (177–185 cm). Its roomy cut is the same from kids' to adult sizes. The Shark Kigurumi stops lower: its XL is aimed at 165 to 178 cm and 70 to 85 kg.

How to measure yourself before ordering

Two measurements are enough for most product pages: your height, plus your weight for the Family Fleece Onesie and the Shark Kigurumi.

  • Height: barefoot, with your back and heels against a wall, lay a book flat on top of your head, mark the wall, then measure from the floor to the mark.
  • Weight: only needed for the product pages that give it. If your height and weight put you in two different sizes, go for the larger one: a one-piece that's too short pulls at the shoulders and crotch as soon as you sit down.
  • Chest: needed for the Cable Knit Teddy Bear Onesie, whose product page gives the garment's measurements laid flat, up to a 122 cm chest in XL. Compare them with your own chest measurement while allowing some room: the cut is designed to be roomy.

No product page gives an inside leg length. Our guide to choosing the right adult onesie size explains how to take your measurements, and onesie or Monster Pyjamas compares the cuts.

If the size doesn't fit

When you buy online, the law gives you at least 14 days to change your mind (Service Public, “Distance selling: the consumer's right of withdrawal”, in French). In this shop, the period starts from receipt: write to the shop with your order number to get the return address. Return postage is at your own cost. The details are on the delivery and returns page.

For the Monster Bunny Faux Fur Pyjamas, the product page states that they are made to order and asks you to check your size carefully before ordering.

Wearing a roomy onesie safely

A plus-size onesie often has long legs and wide sleeves: turn up the legs if they trail on the floor, especially on the stairs. With slippers on, a leg that hangs over your foot gets caught more easily.

Fleece and flannel should be kept away from flames. The London Fire Brigade reminds us never to place a candle near anything that can catch fire, clothing included, and presents LED candles as a safer option (London Fire Brigade, “Candles”). For washing, follow the product page: 30 °C on a delicate cycle and air drying for the Family Fleece Onesie, the Monster Pyjamas, the Pumpkin Onesie and the Monkey Kigurumi, and our article on how to wash and care for fleece pyjamas covers the rest.

In a nutshell

For a plus size, the Family Fleece Onesie goes up to Men 3XL (180–185 cm, 90–100 kg), for women too. The Monster Pyjamas and the Pumpkin Onesie go up to XXL, and the Monkey Kigurumi covers the tallest heights, up to 189 cm in XL. Whatever you choose, trust the table on the product page rather than the letter. Every style is in the shop, with free delivery.

Cover photo: Charles J. Sharp / Wikimedia Commons (CC BY-SA 4.0)

Frequently asked questions

What is the largest onesie size in the shop?

The Family Fleece Onesie in Men 3XL, designed for a height of 180 to 185 cm and a weight of 90 to 100 kg. No style comes in 4XL or above.

Which style should I choose if I'm very tall?

The Monkey Kigurumi in XL is designed for up to 189 cm, the tallest height given in the catalogue. Next come the Star Monster Kigurumi in XL (177–185 cm), the Family Fleece Onesie in Men 3XL (180–185 cm) and the Monster Pyjamas in XXL (170–180 cm and over).

Is there a plus-size kigurumi for women?

The women's sizes of the Family Fleece Onesie stop at XL (160–168 cm, 60–70 kg). Beyond that, look at the men's sizes of the same style, which go up to 3XL, or at the unisex styles: the Monster Pyjamas and the Pumpkin Onesie up to XXL.

Is an XXL the same from one style to another?

No. The XXL of the Monster Pyjamas corresponds to a height of 170 cm and over, the Men XXL of the Family Fleece Onesie to 175–180 cm and 80–90 kg. Read the table on each product page rather than relying on the letter.

What if the size doesn't fit?

You have 14 days from receipt to exercise your right of withdrawal: write to the shop with your order number. Return postage is at your own cost; the details are on the delivery and returns page.

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