Women's butterfly glasses frames are very popular in Europe. The spring hinge is more advanced than the usual one and has excellent flexibility. The thermoplastic material of TR90 frames is known for its lightness, strength, and flexibility, which makes it ideal for comfortable wearing of glasses and less prone to breakage.
CP plastic (cellulose propionate) used in the temples is characterized by rigidity, high tensile strength, and excellent chemical resistance.
Main characteristics of the TR90 frame material:
- Lightness: TR90 is significantly lighter than traditional materials like metal or acetate, making it comfortable for long-term wear.
- Strength and flexibility: The material has high impact resistance and bending, which prevents the frames from breaking in case of accidental falls or deformations.
- Hypoallergenic: TR90 is hypoallergenic, safe for people with sensitive skin.
- Durability: TR90 frames are generally durable and resistant to wear.
- Elasticity: Due to its elasticity, the material tolerates bending and stretching well, which allows for the creation of various shapes and designs of frames.
- Dimensions: lens width – 51mm, lens height — 43 mm, bridge length – 18mm, temple length – 140mm, frame width — 140 mm.
Material:
Frame - TR90 plastic; temples - CP plastic with a metal pin (rod, mount); spring hinge. Demo lenses (lenses without diopters).
