This item is in excellent condition, having been used very little. Lightweight sunglasses made of titanium and carbon fiber, with gradient lenses. Source: Zeque (Zeal Optics) https://share.google/OXdm4SPwKGJ8rI5Je - Brand: ZEALOPTICS - Model Name: Zegue - Materials: Titanium, Carbon Fiber - Accessories: Case - Lens Color: Gradient - Made in Japan Thank you for looking.