Saint Laurent's roller-skate stiletto: The silliest shoe ever?

The Anja 100 Patch Pop Pump Roller will set you back $3,500. Photo / Saint Laurent

You know that moment when something incredibly impractical comes along, but you just need to have it?

Enter, Saint Laurent's latest must-have accessory - roller skate stilettos.

Yes, you heard us correctly.

Three-inch stiletto heels, with a roller-skate wheel attached to the bottom and a kick-stop brake - because it's just so easy walking in a normal pair of heels.

Aptly dubbed the Anja 100 Patch Pop Pump Roller, the heels are part of Saint Laurent's autumn/winter collection and are yours for a mere £1,995 (NZ $3,500).

But if skating around in sky-high sequins and snakeskin seems a bit dangerous, the fashion house has also released a sneaker version for the less adventurous type.

If the stiletto is a bit much for you, the fashion house has also design these. Photo / Saint Laurent

They may not make it into everyday attire but they're sure to get your friends talking.