• Adult wearing a black big-mouth monster onesie pajama with red lips, googly eyes and red tuft hood, front view
  • Black cartoon monster onesie with the plush hood pulled up, worn with matching black plush slippers
  • Black big-mouth monster hooded jumpsuit pajama showing the red-lined hood and face pocket
  • Side view of the black cartoon onesie pajama with the big red-lipped hood
  • Back view of the black monster onesie pajama with the cartoon hood down
  • Black coral fleece monster onesie with the hood framing the face and the cartoon face pocket
  • Key details of the black monster onesie: plush hood with eyes and red tuft, cartoon face pocket, cuffed sleeves, full-length legs
  • Size chart for the black monster onesie pajama: height and weight ranges for S, M, L and XL in inches, centimeters, pounds and kilograms
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Adult Black Big-Mouth Monster Onesie Pajama Costume – Hooded Coral Fleece Jumpsuit with Shoes & Comb

Adult Black Big-Mouth Monster Onesie Pajama Costume – Hooded Coral Fleece Jumpsuit with Shoes & Comb

$64.79
$71.99 $64.79
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Shipping calculated at checkout.
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  • Free US shipping on orders $100+ (after discounts) — Express just $13.99. Under $100, shipping starts at $9.99. See details
  • Ships in 24 hours of your order
  • 30-day returns — free if faulty; October orders by Nov 7. See policy
  • Costume specialists since 2012

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Turn cozy nights in into a laugh with this black big-mouth monster onesie. The one-piece hooded pajama is made from thick, soft coral fleece and topped with a plush cartoon hood that has googly eyes, big red lips and a fluffy red tuft on top. A matching little monster face sits on the front pocket, so the look is fun from the hood down.

What's included

  • Hooded onesie jumpsuit with the cartoon monster hood
  • A pair of matching black plush shoes
  • A comb (for fluffing the red tuft)

Details

  • Plush 3D hood: puffy white-and-black eyes, padded red lips and a red faux-fur tuft
  • Front pocket with a small cartoon face appliqué
  • Long sleeves with gathered cuffs and full-length legs
  • Material: coral fleece, heavyweight (about 251–300 g/m²) for warmth
  • Color: black with red details
  • Unisex, roomy one-piece fit for adults

Size guide

Size Height Weight
S 59.1–61.0 in (150–155 cm) 88–110 lb (40–50 kg)
M 61.0–65.0 in (155–165 cm) 110–143 lb (50–65 kg)
L 65.0–68.9 in (165–175 cm) 143–176 lb (65–80 kg)
XL 68.9–72.8 in (175–185 cm) 176–198 lb (80–90 kg)

This is the manufacturer's fit guide by body height and weight, not garment measurements. XXL is offered as the size above XL; the manufacturer did not list a height or weight range for it. If you are between sizes, choose the larger one.

Great for

Lounging and sleeping at home in cold weather, pajama parties, couple or friend group matching outfits, Halloween and cartoon-themed costume parties, and funny photo shoots.

Shipping

Free US standard shipping on orders of $100 or more (order subtotal after discounts, before tax). On those orders, Express shipping is just $13.99 — or free if everything ships from our US warehouse.

Orders under $100: Standard shipping is $9.99 for items stocked in our US warehouse and $23.99 for items shipped from overseas; Express is $14.99 and $29.99 respectively. If your cart has both, the two rates are added together. The exact rate is always shown at checkout.

All orders are dispatched within 24 hours of confirmation. Standard delivery is 7–20 business days; items stocked in our US warehouse arrive in 5–15 days.

Outside the US, shipping is calculated at checkout. Items shipped from overseas become free above a regional order total, shown at checkout; items stocked in our US warehouse ship internationally at a flat $39.99 with no free-shipping threshold.

Tracking updates are emailed to you as soon as your parcel leaves the warehouse.

30-Day Returns

Faulty, damaged, or not as described
We cover return shipping. Choose a full refund or a free replacement — just send us a photo to start.

Changed your mind
Return within 30 days, unworn and with original tags attached. Return shipping is the customer’s responsibility. Refunds are issued within 5 business days of receipt.

Halloween season
October orders must be returned by November 7. Items returned worn, with makeup marks, or with tags removed will not be refunded.

Not returnable
Worn or washed items · items without tags · masks, wigs and other hygiene-sensitive items once opened · final-sale items.

View full details

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Frequently asked questions

How do I choose the right size for this onesie?

Sizes follow the manufacturer's height and weight guide: S fits about 59–61 in (150–155 cm) and 88–110 lb, M 61–65 in (155–165 cm) and 110–143 lb, L 65–69 in (165–175 cm) and 143–176 lb, XL 69–73 in (175–185 cm) and 176–198 lb. XXL is the next size up, with no range listed by the manufacturer. If you are between sizes, pick the larger one.

What material is the onesie made from and how heavy is it?

It is made from heavyweight coral fleece, about 251–300 g/m², in black with red details.

What comes with the black big-mouth monster onesie?

You get the hooded monster onesie jumpsuit, a pair of matching black plush shoes, and a comb for fluffing the red tuft on the hood.

When does this order ship and how long does delivery take?

Standard shipping to the United States is $23.99, and it is free on orders of $100 or more after discounts. Other destinations are charged a regional standard shipping rate that becomes free above a regional order total; the rate and threshold for your address are shown at checkout. Delivery timing varies by destination, customs, carrier, and local conditions, and holidays or severe weather may add time.

What is the return policy for this item?

Eligible returns must be requested within 30 days of receipt, and the item must be unworn with its original tags still attached. For a faulty, damaged, or not-as-described item, HOMELEX covers return shipping and you choose a full refund or a free replacement. For a change-of-mind return, the customer pays return shipping and the refund is issued within 5 business days of receipt. October orders must be returned by November 7. Worn or washed items, items without tags, hygiene-sensitive items such as masks and wigs once opened, and final-sale items cannot be returned.

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