HALLOWEEN 2026 · SIZES XS–XXL
The good boy deserves a great costume.
Sizes for every pup. Fast US shipping, tracked delivery worldwide.
Shop by category
Find the right costume for your dog’s size, budget and personality.
Bestsellers
Bestsellers
Big Dogs (XL & up)
Big Dogs (XL & up)
Under $20
Under $20
Funny Costumes
Funny Costumes
WHY GOOD BOY
Costumes built for real dogs, not just photos.
Every costume we carry is chosen for soft fabric, secure hook-and-loop closures and room to move — so your dog stays comfortable through the whole parade. We size from XS to XXL, publish a measuring guide for every product, and swap sizes free if the fit isn’t right.
Questions, answered
Will it arrive before Halloween?
Yes, if you order by October 26 in the US or October 8 for international delivery. Every order ships with tracking.
How do I pick the right size?
Measure your dog’s neck, chest and back length, then check the size chart on each product page. When in doubt, size up — a slightly roomy costume is far more comfortable than a tight one.
What if the size is wrong?
Contact us within 14 days of delivery and we’ll exchange it for the right size. Unworn costumes with tags can also be returned.
Do you ship internationally?
We do. Standard tracked international shipping is $7.99 and free on orders over $50, with delivery in 10–20 business days.