Japanese design firm Nendo say it is their collective job to provide people with a small '!' moment – and they’ve certainly fulfilled this remit with their new Triangle Roomshoes. Inspired by the traditional no-shoes-in-the-house rule, and nodding towards the Moroccan camel-skin slipper, these abstracted pockets-cum-footwears are sweeping floors across Japan.

The conical, comfortable slippers are available in a choice of two non-slip materials – elastic polyester and durable synthetic leather. They are stackable, too, so you can build a slipper-tower by the front door and offer them to barefoot guests for their sole pleasure and comfort – alleviating the need for bulging shoe-racks in otherwise uncluttered homes.

The triangular shape isn’t just a handy storage solution – the tapered toe-point hugs the shape of any foot thanks to the natural crease that forms at the in-step.

Even though they may look like they’ve been taken straight from the halls of Hogwarts, the Triangle Roomshoes are a seriously comfortable, space-saving solution.