All of the materials used for the wood eyeglasses are hand selected for eccentricity and strength of the grain pattern, ensuring beautiful and durable results. Any available wood can be used, but certain woods are more appropriate for the specific job, Scott can help clarify these issues with you. And don't worry about weight and comfort ability, even the most dense wood, Lingum Vitae, is much lighter than an all plastic pair of the same size. Enjoy the characteristics of the selected exotic hardwoods.