✨️Thank you for viewing!✨️ The Ray-Ban Wayfarer RB2140-F 901 is one of the most iconic and popular sunglasses models. The numbers on the inside of the temples (arms) shown in the image indicate the details of this specific model. Model Details Item | Description ---|--- SportRx · SportRx | SportRx · SportRx +4 | RB 2140-F | Wayfarer model name. "F" indicates it's an Asian fit (full fit) model, designed with higher nose pads for people with lower nose bridges, such as Japanese people. 901 | Black frame color code. 52□22 | Size: 52 indicates the lens width (in millimeters), and 22 indicates the bridge width (the width of the nose bridge between the lenses) in millimeters. 3N | Lens category: Lens filter category. "3" indicates a dark tint suitable for strong sunlight (Category 3), and "N" means non-polarized (normal) lenses. This model is known for its classic design and excellent fit, and is loved by many celebrities.