At 4EYES, responsibility is built into the materials we choose and the way our frames are made—balancing performance, durability, and design without excess.
We work with materials selected for their strength, flexibility, and long-term wear.Our TR-90 frames are constructed from a high-performance memory polymer—engineered to be exceptionally lightweight, impact-resistant, and resilient under daily stress. The material is designed to flex and return to shape, offering durability without compromising comfort. Its stability across temperature and environmental conditions helps maintain structure over time.For our acetate frames, we use high-grade materials known for their density, strength, and refined finish. Acetate allows for precise shaping, rich color depth, and a more dimensional form—giving each frame a distinct presence while maintaining durability and resistance to distortion.
Each frame is designed with structural integrity in mind—balancing flexibility where needed and rigidity where it matters. The goal is a frame that feels considered in hand and consistent in wear.
We produce in controlled quantities to maintain quality and avoid excess. This approach reduces overproduction while allowing us to focus on refinement at every stage.
Our packaging is kept minimal and functional—designed to protect the product while avoiding unnecessary materials.
We see responsibility as an ongoing process. As materials and methods evolve, we continue to refine how our frames are made—prioritizing longevity, performance, and thoughtful design.