True style moves at its own pace. The cristallino (crystalline lens) is the natural, transparent, biconvex lens located inside your eye, just behind the iris and pupil. It acts like a camera lens, focusing light rays clearly onto the retina so you can see sharp images. Cristallino model is crafted in Italy from high-grade German steel, these sunglasses merge Haute Couture with high performance. From early morning miles to high-fashion urban settings. Never compromise on speed. Never settle on style. ABOUT: •Alpacca: Ultra-lightweight frame with architectural strength. •Modern Runner Fit: Zero slip, zero bounce, maximum aerodynamic comfort. •Aesthetic Edge: A high-fashion silhouette that dominates the street and the track. MATERIAL Why Alpacca? The Artisan's Choice. "In premium eyewear, the magic is in the material. Alpacca is a noble alloy that blends copper, zinc, and nickel to offer the best of three worlds: the deep luster of silver, the durability of steel, and a rare flexibility that allows for millimeter-precise adjustments. The result? A pair of glasses that is virtually indestructible, feather-light, and tailored specifically to you." SPEC: Weight: 24g Frame Material : Alpacca Lenses : V3DO lens cat.3 Features: Handmade in Italy by craftsmen , Adjustable nose tips, ultralight and flexible. What's in the box: Cristallino™ sunglasses Eco pouches - 100% recycled material - R-Pet (recycledPolyethylene) Branded adjustable leash Sticker All our sunglasses are handcrafted in Italy, with particular attention to their perfection, precision and complexity.