In the last few decades, when travel makes one modest, people prefer air travel instead of car. As such, aircrews and flight passengers are prone to electromagnetic (EM) radiation exposure overtime during flight. Various researches were conducted by the Federal Aviation Agency (FAA) and European Union (EU) in order to understand its details. This paper offers reviews of EM radiation effect to human body in altitude of commercial jet and materials that may provide a convince protection for fuselage structure of aircraft. It was found that Polyethylene (PE) is a convincing material that may absorb EM radiation. NASA has found that lower effective dose toward galactic cosmic rays (GCR) was obtained in PE at 0.1 cSv/day compared to aluminum at 0.125 cSv/day at the same thickness which was 20 g/cm2.