Serengeti 101 Large Sunglasses combine an oversized acetate frame with Serengeti’s photochromic mineral lenses for superior clarity and reduced glare in changing light. Key attributes: Crystal Slate | Acetate | Photochromic mineral lenses | Polarized lenses | Spectral Control technology | Ultra-light mineral lens | Anti-reflective coating | Chemically tempered for scratch resistance | 5-barrel hinges with functional rivets | Wrapped rectangular frame | Full wrap silhouette | Bold crafted acetate | Metal embellishments | Oversized silhouette | Dimensions & fit: 61 x 18 x 140 | Large fit | Composition & care: Acetate (frame) | Mineral (borosilicate) lens