These replica Riddick goggles are fantastic. They are made of heavy duty synthetic rubber with UV protection so sunlight does not deteriorate them. And the lenses are top quality, too with 400 Ua protection. The Chronicles style of replica goggles come ready to fit, with a little kit that contains the adhesive and a connector strip so you can exactly fit the goggles to your head size. The replica Pitch Black goggles are made of the same heavy duty UV protected rubber but with an adjustable high quality elastic strap, so they can fit all head sizes. They are the best costume goggles I have ever seen. They look and feel truly authentic.