Custom made Windshield sunshade, designed and tailor-made to suit your model of MX-5.
The windscreen sun shade are manufactured with triple laminate and a foam core center that acts as an insulator.
These are not a thin flimsy unit, they are a quality thick unit about 8mm thick!
Not only effective at blocking out harmful UV rays, but they can also significantly reduce the amount of heat build-up inside your car by reflecting the direct sunlight away from the vehicle.
Sunshade depicted as fitted to an NB.