The fabric is actually 100% polyamide, a material that has been around for more than half a century.

WSJ: Polyester Is Back in Style at Alexander Wang, Talbot Runhof, Akris

This includes a patented hinge concept that makes screws and soldering obsolete, and the company's own polyamide-based material, called Mylon, which makes frames lighter and more durable.

WSJ: Shop Talk: What a Spectacle | Mykita Glasses

While fine silk gazar and doubleface cashmere are standard bearers for luxurious clothing, many designers are finding that polyester, nylon, neoprene, polyamide and other synthetic materials allow them to be more daring and versatile.

WSJ: Polyester Is Back in Style at Alexander Wang, Talbot Runhof, Akris