Elastomer, Polystyrene and Polyester Construction Hachiman. Designed to be stacked on top of each other, they come in three sizes – large, medium and small – and are made from elastomer – a super-flexible, yet durable, material, that also happens to be scratch-resistant and recyclable. Like all the rest, this medium, coffee-coloured style comes with two sturdy carry handles - in contrasting red - and a felt inner base to keep your belongings safe – whether it takes pride of place in your bedroom or office.