By Eschenbach. Are made for top performers who need a top performing optical frame. Something you may be glad of if you accidentally sit on them. Titanflex is made from a titanium alloy, that makes the frame highly supple or flexible. Indeed the material is also used in surgical and dental work. The material is often referred to as memory metal because of its ability to go back to its original shape if they come under unexpected or excessive pressure. Aiming at men who are looking for lightweight, strong, flexible frames that are not only very stylish they are exceptionally comfortable.