Despite being perfectly round, Moana Red Oak manages to leave an uncompromising impression. It is layered with natural red oak on the outside and inside layers, strengthened with carbon fiber in the middle. The blue light blocking lens technology is designed to improve sleep, alleviate eye fatigue, help reduce eye strain while protecting your eyes from high-energy visible blue light from our modern time smartphones and computer screens. Nothing can beat Treehut blue light frames handmade from natural wood when it comes to a positive change from those screen heavy days.