Grilamid Raw Material - PC Lens Corbeau glasses are made from Grilamid Natural raw material which is a high-quality thermoplastic material produced in Switzerland that is shock-resistant, lightweight, non-allergenic and has a flexible structure. Grilamid Natural material, is antibacterial and anti-allergic, sterile and doesn’t produce bacteria. It does not contain bisphenol A (BPA). It will not harm your health. It is extra light and not an Optical Product. This product is safety glass with blue filter lenses, not a medical product and is classified as personal protective equipment.