At Belavi Copenhagen, we choose materials with intention — and for summer, nothing beats TR-90. This ultra-lightweight polymer was made for sportswear, known for flexibility and strength. Our TR-90 frames stay snug even in heat and motion. Sweat increases grip, keeping the fit secure without pressure. Whether you're walking the city or lounging seaside, comfort stays consistent. It’s performance built to follow you — wherever summer takes you.

TR-90 isn’t just light — it’s resilient. Frames flex without breaking or losing shape. Unlike traditional plastics, they won’t warp or slip as temperatures rise. The material was designed for athletes — made for motion, not display. That’s why Belavi sunglasses stay secure and balanced in all conditions. Summer tests everything, and our materials are built to respond. Reliable structure. Minimal weight. Pure function.