Le Specs presents the Slim Rectangle 'Numero Cuatro' Sunglasses, a narrow-profile pair defined by a slimline rectangular frame and refined chamfering for a sleek, understated look. The design pairs handmade acetate construction with premium CR-39 lenses for clear vision and reliable UV protection. Key attributes: Obsidian black | Cellulose acetate | 100% UVA / UVB protection | Category 3 tint | Superior optical clarity (CR-39 lenses) | Hand-polished acetate finish | Includes protective magnetic closure case | Includes branded microfiber cleaning cloth | Non-polarised lenses | Slim rectangle frame | Delicate chamfered edges | Infinity flagstripe metal decal | Rounded flagstripe-inspired rivet | Dimensions & fit: Frame width: 146 mm | Frame height: 40 mm | Lens width: 54 mm | Nose bridge: 21 mm | Temple length: 140 mm | Composition & care: Cellulose acetate | CR-39 lens material | Metal hardware