1. Resin lenses: a type of lens made of organic materials CR-39, scientific name Dially Glycol Carbonates, is the most widely used material for producing ordinary resin lenses. It was discovered by ch...
1) Standard Scope & Core Tests Consumer sunglasses must block harmful UV, maintain appropriate visible light transmittance for the intended use, and meet optical quality requirements. In the U.S.,...
2025–2026 Sunglass Color & Shape Trends for Private Label Buyers This overview condenses what’s trending across shapes, color directions and finishes, and how to pilot new SKUs with co...