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Free UK delivery over £39 · Tracked & fast

Giddy PetsGiddy Pets

All about this product

Product description

Most pet fancy dress is a flat printed shape and a photograph that flatters it. This one has jointed legs that stand away from the body and move as your pet moves, which is what makes the spider read as a spider from across a room rather than as a black bib. The body section sits over the shoulders and the legs splay out from there, so it works on a cat or a small dog equally well.

Sitting over the shoulders rather than round the neck matters more than it sounds: it puts the weight on the strongest part of the body and keeps nothing pressing on the throat. The legs are the whole point and also the thing to watch, because they catch on furniture, doorframes and other pets. A costume like this belongs in an open room for a few minutes, not on a walk. Three sizes and three colourways are listed.

  • Jointed spider legs that move with your pet
  • Sits over the shoulders rather than around the neck
  • Sizes small, medium and large
  • Colourways listed as red, black, and black with red
  • Suits cats and small dogs

Two things worth knowing. Costumes are for short, supervised periods only — never leave one on an unattended pet, overnight, or during rough play, and take it off the moment your pet freezes, flattens or starts reversing out of it. We also hold no measurements from the maker, so we would rather measure the costume for you than repeat a size chart we cannot verify. Chest girth behind the front legs is the number to send us.

Who it's for: Anyone dressing a tolerant cat or small dog for a Halloween photo or a short party appearance, who wants something with real shape to it.

Why we chose it

The jointed legs stand away from the body, so it reads as a spider across a room rather than a black bib. It sits over the shoulders, nothing pressing on the throat. Indoors only, the legs catch.

— Matt, founder

Material & product details

Material
Cloth
Size guide & how to measure

Pet coats and jumpers are sized mainly by back length, with chest girth as a second check. Back length matters most for coverage.

How to measure

  1. Back length: measure along the spine from the base of the neck (collar area) to the base of the tail.
  2. Chest: measure around the widest part of the ribcage, behind the front legs.
  3. If the two measurements suggest different sizes, choose by back length and allow for the chest.
SizeTypical back lengthTypical chest
XS20–25 cm30–40 cm
S25–32 cm38–50 cm
M32–40 cm48–62 cm
L40–50 cm60–76 cm
XL50–60 cm74–92 cm

Ranges are approximate and vary by style. Always check this product’s Specifications for its exact measurements.

Delivery, returns & payment

Delivery

Tracked UK delivery — your estimated arrival date is shown above and updates automatically. Standard delivery £2.99, and free on orders over £39. Full details on our delivery information page. Delivery information

Returns

30 days to change your mind, no interrogation. Items need to be unused (sensory products unopened, for hygiene). Full details on our delivery & returns page.

Payment

Secure checkout by Stripe — cards, Apple Pay, Link and Klarna. We never see or store your card details.

Common questions
Which options can I choose from?

Black / M, Black / S, Red / M, Red / S, Black / L, Black Red / M, Black Red / L, Red / L, Black Red / S. Pick one above before adding to your basket.

How long does delivery take?

Your estimated delivery date is shown above and updates automatically. UK orders are sent tracked — standard delivery is £2.99, and free on orders over £39.

How do I track my order?

As soon as your order is dispatched we email you a tracking link, so you can follow it all the way to your door.

How do I choose the right size?

Use the size guide above to measure your pet, then pick the size whose range your measurement falls within. If you’re between sizes, size up. Still unsure? Email us before you order.

What is it made from?

Cloth. Full specifications are listed above.

What if I need to return my order?

You have 30 days from delivery to change your mind. Just email us with your order number and we’ll send the return steps the same working day — see our delivery & returns page for details.

Jointed Spider Pet Costume

£13.99

Delivery £2.99 · free over £39

A spider costume with jointed legs that sits over the shoulders.

Will this fit my dog?

Save your dog’s measurements once, then compare them with coats, harnesses and collars while you shop.

Colour

Size

Size guide & how to measure

Pet coats and jumpers are sized mainly by back length, with chest girth as a second check. Back length matters most for coverage.

How to measure

  1. Back length: measure along the spine from the base of the neck (collar area) to the base of the tail.
  2. Chest: measure around the widest part of the ribcage, behind the front legs.
  3. If the two measurements suggest different sizes, choose by back length and allow for the chest.
SizeTypical back lengthTypical chest
XS20–25 cm30–40 cm
S25–32 cm38–50 cm
M32–40 cm48–62 cm
L40–50 cm60–76 cm
XL50–60 cm74–92 cm

Ranges are approximate and vary by style. Always check this product’s Specifications for its exact measurements.

Delivery £2.99 · free over £39

£13.99

30-day returns · Free return postage

Choose your options

Jointed Spider Pet Costume

Jointed Spider Pet Costume↗
Jointed Spider Pet Costume

Secure checkout by Stripe · Card, Apple Pay & Klarna

10 reviews on Trustpilot, all five stars · TrustScore 4.3

“Really nice family business, no problems at all.” — Tracey

Two things worth knowing

Costumes are for short, supervised periods only — never leave one on an unattended pet, overnight, or during rough play, and take it off the moment your pet freezes, flattens or starts reversing out of it. We also hold no measurements from the maker, so we would rather measure the costume for you than repeat a size chart we cannot verify. Chest girth behind the front legs is the number to send us.

Why shop with Giddy Pets?

Why buy from Giddy Pets?

  • Carefully selected by pet ownersEvery product is chosen and quality-checked by people who actually live with dogs, cats and small pets.
  • Tracked delivery on every orderUK delivery with tracking as standard — and it’s free when you spend over £39.
  • UK customer supportReal, UK-based humans read every email — usually Matt, the founder. No bots, no ticket numbers.
  • Easy returns30 days to change your mind, no interrogation. If it’s not right, we’ll make it right.
Not ready to buy? Free guides & a 2-minute pet quiz

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This is an everyday pet product, not a veterinary treatment. For any health concerns, please speak to your vet.

£13.99

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What customers say about Giddy Pets

10 reviews on Trustpilot, all five stars · TrustScore 4.3

Read them on Trustpilot
“Really nice family business, no problems at all.”
Tracey · Oct 2026 · Trustpilot
“Genuine helpful service that personalised my order.”
Sharon · Oct 2026 · Trustpilot
“It always comes on time and without a fuss, would definitely recommend.”
Dennis · Aug 2026 · Trustpilot

Shop-wide reviews from customers who bought from us, collected by Trustpilot. Product-specific reviews appear here once a buyer leaves one.

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Advice & planning

Tools and advice

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