• Adult bat onesie Halloween costume with purple chest and wings, for cozy and spooky October vibes, shown on pink background
  • Cute bat onesie adult Halloween costume with purple chest, playful wide bat wings, and cozy hood with bat face design
  • Bat onesie for adults shown from the front, cozy fleece Halloween costume with purple chest panel and bat ear hood.
  • Adult bat onesie with purple details, soft fleece fabric, and winged sleeves perfect for Halloween parties or lounging at home
  • Cozy adult bat onesie made from soft fleece, perfect as Halloween pajamas, loungewear, or a fun spooky costume outfit
  • Front view of adult bat onesie with oversized purple chest design and wide bat wings spread out for Halloween costume style
  • Back view of adult bat onesie Halloween costume with wide black wings and hood featuring yellow eyes and purple bat ears
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Bat Onesie

Bat Onesie

🎁 +FREE MYSTERY GIFT — ENDS SOON!

👘 Unisex Onesie Kigurumi

🌎 Free Worldwide Shipping

💆 Hassle-Free Returns

✈️ Estimated Delivery: 7-14 Business Days

$55.95
$111.90 $55.95
Sale Sold out
Tax included. Shipping calculated at checkout.
Size

BAT ONESIE

Take flight this Halloween with the ultimate bat onesie — equal parts cozy, cute, and spooky. Whether you’re heading to a costume party, passing out candy, or binging scary movies at home, this onesie is designed to make every October night feel festive.

Made from soft fleece, this adult bat onesie features winged sleeves and a pointed-ear hood for the perfect touch of Halloween charm. It’s roomy, breathable, and comfy enough to wear all night long — from trick-or-treating to midnight snacks.

Rock it solo as your go-to bat costume onesie, or match with friends for a group look that’s guaranteed to turn heads. Either way, you’ll stay cozy while showing off your spooky side.

🦇 "I'm Batman"
🎭 Works as pajamas, loungewear, or costume
🎃 Perfect for parties, lounging, or trick-or-treating

Official Bat Onesie Kigurumi

Core Features

  • Ultra-soft fleece fabric
  • Full-body onesie for warmth & coziness
  • Unisex adult kigurumi fit
  • Easy button-up (or zipper) closure
  • Pajamas, loungewear, or costume
  • Breathable & comfy year-round
  • Machine-washable & durable
  • Multiple sizes available

Sizing

 

Feet and Inches
Onesie Length (shoulder to ankle) Suggested Height
S 4'3" 4'9"-5'1"
M 4'7" 5'1"-5'5"
L 4'11" 5'5"-5'9"
XL 5'2" 5'9"-6'1"

 

Centimeters
Onesie Length (shoulder to ankle) Suggested Height
S 130 145-155
M 140 156-165
L 150 166-175
XL 160 176-189

 

More Sizing Details:

Feet and Inches
Bust Sleeve Shoulder
S 3'7" 1'7" 1'6"
M 3'9" 1'8" 1'6"
L 3'11" 1'10" 1'7"
XL 4'1" 1'11" 1'8"

 

Centimeters
Bust Sleeve Shoulder
S 110 50 46
M 115 53 48
L 120 57 50
XL 125 59 52

 

FAQ

  • What's a Kigurumi?
    Kigurumi is a onesie inspired by animal or character designs. Every Kigurumi is a onesie, but not every onesie is a Kigurumi.
  • How do I know my size?
    Check the "Sizing" tab and use the "Suggested Height" column to choose the best size. You can size up for baggier fit.
  • How do I wash my Kigurumi?
    Machine wash on a gentle cycle with cold water & air dry to maintain its softness.

Need more details? Visit our FAQ page for answers to all your questions!

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See what our 9.000+ Happy Customers Said

  • Said that Octoplush is their go-to gift for friends and family.

  • Said that Octoplush plushies are their favorite type of plush toys.

  • Rated Octoplush products 4.76/5 or higher.

Mystery Box

Because we know that our customers enjoy receiving gifts, we offer mystery boxes. Inside you can find products that are worth more than $60 and that will go along perfectly with your other plushies. Most of our customers are pleased with the gifts they receive. Join them.

Size S = $25+ of Value

Size M = $50+ of Value

Size L = $60+ of Value

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