• Adult olive green big mouth monster onesie, coral fleece hooded pajama jumpsuit, hood up close-up
  • Adult olive green big mouth monster onesie, coral fleece hooded pajama jumpsuit, full-length front view
  • Adult olive green big mouth monster onesie, coral fleece hooded pajama jumpsuit, hood up with monster-face pocket
  • Adult olive green big mouth monster onesie, coral fleece hooded pajama jumpsuit, Halloween party look
  • Adult olive green big mouth monster onesie, coral fleece hooded pajama jumpsuit, shown with the included pink comb
  • Big mouth monster onesie size chart S to XL by height and weight in inches, feet, lb, cm and kg
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Adult Olive Green Big Mouth Monster Onesie, Hooded Coral Fleece Pajama Jumpsuit Costume with Comb

Adult Olive Green Big Mouth Monster Onesie, Hooded Coral Fleece Pajama Jumpsuit Costume with Comb

$58.49
$64.99 $58.49
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Shipping calculated at checkout.
Size
Color
  • 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

Pairs well with this

Make loungewear the funniest thing in the room with this olive green big mouth monster onesie for adults. The one-piece hooded pajama jumpsuit is made of thick, warm coral fleece and has a cartoon monster face on the hood — big dimensional googly eyes, an oversized plush pink mouth and a shaggy brown faux-fur "hairdo" — plus a little monster-face pocket on the front. It is a unisex style with a loose, roomy fit, made for cold nights at home, sleepovers and silly costume parties.

What's included

  • 1 × hooded big mouth monster pajama jumpsuit (one piece; hood face and pocket are attached)
  • 1 × pink comb
  • Shoes and slippers shown in some photos are not included

Details

  • Material: coral fleece
  • Thick fabric (about 251–300 g/m²) for warmth in autumn and winter
  • Color: olive green with a pink mouth and brown faux-fur hair on the hood
  • Hood with dimensional googly eyes and a plush open mouth
  • Front pocket shaped like a small monster face
  • Long sleeves and full-length legs
  • Unisex, loose and relaxed fit

Size guide

Manufacturer's fit guide by height and weight (adult sizes). The cut is loose and roomy; if you are between sizes, choose the next size up. The manufacturer gives no fit range for XXL — it is cut larger than XL.

Size Height Weight
S 4'11"–5'1" (150–155 cm) 88–110 lb (40–50 kg)
M 5'1"–5'5" (155–165 cm) 110–143 lb (50–65 kg)
L 5'5"–5'9" (165–175 cm) 143–176 lb (65–80 kg)
XL 5'9"–6'1" (175–185 cm) 176–198 lb (80–90 kg)

Great for

  • Warm loungewear and sleepwear on cold nights
  • Pajama parties, sleepovers and movie nights
  • Halloween and funny monster costume parties
  • Matching couple or group onesie photos

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 does the big mouth monster onesie fit, and which size should I choose?

It is a loose, roomy adult fit sized by height and weight: S fits 4'11"–5'1" (150–155 cm), 88–110 lb; M 5'1"–5'5" (155–165 cm), 110–143 lb; L 5'5"–5'9" (165–175 cm), 143–176 lb; XL 5'9"–6'1" (175–185 cm), 176–198 lb. The manufacturer gives no range for XXL, which is cut larger than XL. If you are between sizes, size up.

How do I choose the right size?

Use the manufacturer's fit guide by height and weight. The cut is loose and roomy; if you are between sizes, choose the next size up. For XXL, the manufacturer gives no fit range—it is cut larger than XL.

What material is the onesie made of?

It is made of thick coral fleece, about 251–300 g/m², for warmth in autumn and winter.

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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