Rh + is synonymous of technology and functionality  also in eyewear: the optical and sun frames of the Hilex ™ collection guarantee maximum mechanical strength and lightness, as well as being extremely elastic.The Hilex ™ material is a technopolymer composed of a light and flexible thermoplastic resin able to resist to any type of deformation and heat. This material has been used in the eyewear industry after extensive use in the aerospace, aeronautical, biomedical and automotive industries.The flexibility is impressive, despite being a very light material it is also elastic and resistant to deformations consequently making the glasses light and comfortable to wear.Trim stability is another important aspect: with usage, the glasses tend to lose the setup regulated by the optician at the time of delivery. The Hilex ™, on the other hand, is not affected by this issue and even after many months of usage your glasses will remain exactly in their initial configuration.