Hover to zoomSize 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
- Back length: measure along the spine from the base of the neck (collar area) to the base of the tail.
- Chest: measure around the widest part of the ribcage, behind the front legs.
- If the two measurements suggest different sizes, choose by back length and allow for the chest.
| Size | Typical back length | Typical chest |
|---|---|---|
| XS | 20–25 cm | 30–40 cm |
| S | 25–32 cm | 38–50 cm |
| M | 32–40 cm | 48–62 cm |
| L | 40–50 cm | 60–76 cm |
| XL | 50–60 cm | 74–92 cm |
Ranges are approximate and vary by style. Always check this product’s Specifications for its exact measurements.
Specifications
- Material
- Cloth
Full description
A plush dinosaur-skull hood and rib-bone body with luminous seams that charge in daylight and glow soft green after dark. Pink, grey or white, sizes M and L — sized for cats and small dogs.
Good to know
- Costumes are for supervised wear only — never leave one on an unattended pet, overnight, or during rough play
- Check the size guide before ordering; chest measurement decides the fit
- Shipped tracked to the UK, typically 8–13 working days — for Halloween, order by 10 October
- Covered by our 14-day returns promise
Questions before you buy? Drop us a line — a real human reads every message.
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
14 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?
Pink / M, Pink / L, Gray / M, Gray / L, White / M, White / L. 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 14 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.
Glow-in-the-Dark Dinosaur Skeleton Pet Costume
A plush dinosaur-skull hood and rib-bone body with luminous seams that charge in daylight and glow soft green after dark. Pink, grey or white, sizes M and L — sized for cats and small dogs.
Colour
Size
From £17.99
Not sure of the size? Check the measuring guide
· tracked · 14-day promise
UK delivery £2.99 · free over £39
Secure checkout by Stripe · Card, Apple Pay & Klarna
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 returns14 days to change your mind, no interrogation. If it’s not right, we’ll make it right.
Not ready to buy? Get the free welcome kit.
Practical pet-care guides — new puppy & kitten checklists, feeding and grooming planners and more. No spam.
🐾 Not sure what to get them? Take the 2-minute pet quiz →
This is an everyday pet product, not a veterinary treatment. For any health concerns, please speak to your vet.
You might also like
Bat Wings Dog Accessory
Clip-on bat wings that sit across the shoulders and fasten over a harness your dog already wears, so nothing new has to go round the chest or legs.
From£14.99
Dachshund Halloween Suit
A Halloween costume cut long in the body for dachshunds, in a white captain or blue pilot design, sized small through to extra large for short supervised wear.
From£16.99
Adjustable Cowboy Rider Dog Costume
An adjustable rider costume in four sizes that makes a small cowboy appear to be sitting on your dog's back, with nothing worn over the face or paws.
£15.99
Advice & planning
Tools and advice
Practical calculators and trusted guides relevant to this product.
Reviews
No reviews yet — honest ones only, so be the first.