Black plush spider costume for dogs and cats with eight furry legs — My Petsworth
Spider Halloween harness costume for dogs and cats — My Petsworth
Small fluffy dog wearing black plush spider costume with eight furry legs — My Petsworth
Black plush spider costume for dogs and cats on a white background — My Petsworth
My Petsworth size guide for the pet spider costume, sizes S to XL

4.6/5 Loved by 457 pets

Spider Dog Costume – Halloween Outfit for Dogs & Cats

£19.95
Regular price £19.95
Size S
Buy 2, save 10% Buy 3+, save 15% Applied automatically at checkout
Free UK delivery
14-day returns
Secure checkout
Support within 24h
Free UK delivery
14-day returns
Secure checkout
Support within 24h

Eight furry legs, no fuss. The spider body sits on the back and the legs stick out to each side, so from any angle your pet is a tarantula — but there is nothing over the head, nothing over the face, and nothing on the paws. It clips on like a harness in about five seconds.

Key features

  • Eight plush legs: four on each side, in shaggy black fur over a bendable core, so you can set them and they hold the shape.
  • Nothing over the head: the whole thing fastens at the neck and around the body, which is why cats will actually wear it.
  • Fits dogs and cats: four sizes covering a 26 cm chest up to 65 cm.
  • Two quick-release buckles: one at the neck, one around the body, both on adjustable webbing — so it goes on and comes off in one movement.
  • Reads instantly in photos: the silhouette does the work — no close-up needed.

Specifications

  • Material: soft fabric body panel, shaggy faux-fur legs
  • Fastening: two side-release buckles on adjustable webbing straps
  • Colour: Black (this costume comes in black only)
  • Sizes: S, M, L, XL
  • Care: spot clean, do not tumble dry

Choosing a size

Go by the chest measurement — that is what the fit hangs on. Measure the widest part of the ribcage, just behind the front legs, and check it against the size guide in the product images above. The sizes overlap, so if your pet falls in two, take the larger one.

Safety and comfort

The legs are long and they trail. Keep an eye on your pet around stairs, furniture and other animals, and take the costume off if the legs get caught. Cats in particular can twist in something they can't see behind them, so never leave a cat alone in it.

Keep dress-up sessions short. If your pet freezes, flattens its ears or tries to back out of it, take it off — no photo is worth the stress.

Free UK delivery

Every order ships free of charge, anywhere in the UK, with no minimum spend. You'll receive tracking by email once it's on the way. See our Shipping Policy.

14-day returns

Not quite right? You have 14 days from delivery to return your order. Email info@mypetsworth.com and we'll send you the return instructions. Full details in our Return & Refund Policy.

Bundle & save

Add more, save automatically at checkout: 10% off when you buy 2 products, 15% off when you buy 3 or more. No code needed — the discount is applied in your basket.

Support within 24 hours

Questions about sizing, delivery or your order? Email info@mypetsworth.com and a real person will reply within 24 hours.

Verified customers

What owners tell us

Golden retriever on a cooling mat
We bought the cooling mat for our Labrador during the warmer weather and it's been brilliant. He actually chooses to lie on it instead of the sofa now.
Sarah M. Leeds · Dog Cooling Mat
German shepherd on a faux fur bed
Our 10-year-old Golden Retriever absolutely loves this bed. He settled into it straight away and seems much more comfortable getting up in the mornings. The fabric feels really durable and the bed still looks brand new after a few weeks of daily use. Definitely worth every penny.
David H. Bristol · Faux Fur Dog Bed
Cat with elevated food bowl
I ordered the elevated cat bowl for my British Shorthair and I'm so pleased with it. It looks lovely in the kitchen, feels sturdy and is much easier for her to eat from. The bowls are simple to remove and clean, which is a big plus. Very happy with the purchase.
Emily C. Winchester · Auto Food and Water Feeder

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