Paul

Kingdom Sunglasses Verified independent store

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They are rugged, strong and made from a material called TR90 or its namesake, Grillimid. This material is made to withstand the extremes of the outdoors. It will not crack in the c old, and will not de-laminate in the heat. Another great benefit of this material is that it has built in memory. It will take the shape of the wearer’s head. Nose Pads: Both the nose pads and the tips of the ear piece are non slip silicon. They will grip, not slip when in contact with moisture. Prescription Lens: They will allow some prescription lens depending on thickness of the lens required Show more