Scale is the entire idea here. Where most spider costumes amount to a small body and a few token legs, this one sprawls: the legs reach right across the dog's back and out beyond the sides, so a medium dog trotting down a pavement in it at dusk genuinely makes people stop. If the point of the evening is the reaction, size is what buys it, and nothing subtle will do the same job.

Bigger costumes ask more of the dog, and that is worth being straight about. Legs extending past the body catch on gateposts, table legs and other dogs, and a dog who has never worn anything will notice a wide costume far more than a close-fitting one, so try it indoors before the walk. It comes in grey, brown, and black and purple across three sizes, and the colour changes the effect: the grey reads more realistic, the purple more cartoonish.

• Oversized spider with legs that sprawl across the back
• Three colourways: grey, brown, and black and purple
• Three sizes: S, M and L
• Sized for dogs rather than cats
• Built to be seen from a distance

Two things worth knowing. Wide legs snag, so this suits open walking and photographs rather than a crowded pub or a party full of other dogs. And it remains a costume: short supervised wear only, off before your dog is left alone. If your dog crouches or refuses to walk the moment you put it on, it is not the one for them and no amount of coaxing changes that.

Who it's for: medium and large dogs who are unbothered by clothing, and owners who want the costume people actually notice.