Size = lens width – bridge – temple length, in mm (e.g. 50-23-145). Lens width is the number to match with your current frames.
Eyewear Size Guide
Understanding your eyewear measurements ensures a proper, comfortable fit. Most frames list their measurements inside the arm in this format:
50 ▢ 18 – 140
Lens Width ▢ Bridge Width – Temple Length (all in millimeters)
Eyeglass Measurement Breakdown
| Measurement | Description | Typical Range |
|---|---|---|
| Lens Width | Horizontal width of one lens | 48–55 mm |
| Bridge Width | Distance between the lenses | 16–22 mm |
| Temple Length | Length of the arm piece | 135–150 mm |
| Lens Height | Vertical height of the lens (important for sunglasses) | 30–45 mm |
| Frame Width | Total width across the front of the frame | 120–145 mm |
General Fit Recommendations
| Size | Lens Width | Bridge | Temple | Best For |
|---|---|---|---|---|
| Small | Under 49 mm | 16–18 mm | 135–140 mm | Narrow faces |
| Medium | 50–54 mm | 17–20 mm | 140–145 mm | Most adults |
| Large | 55-59 mm | 18–22 mm | 145–150 mm | Wider faces |
| Oversize | Over 60 mm | 18–22 mm | 145–150 mm | Wider faces |
If you need help selecting the perfect frame size, our team is always happy to assist.
100% authentic designer eyewear — brand new, with all original accessories
Free U.S. shipping on orders over $150 · Ships in 1–2 business days
14-day returns · Questions? Call 800-515-8523
Estimated Shipping Widget will be displayed here!
Description
Montblanc MB0266O Eyeglasses feature durable, lightweight recycled acetate frames with a square/rectangle shape designed for men. Crafted in Japan, they offer reliable comfort and precise detailing.
The minimalist design suits both formal and casual settings, combining function with subtle style.
Montblanc MB0266O Recycled Acetate Square/Rectangle Men Eyeglasses
- Style Name: MB0266O
- Designer: Montblanc
- Gender: Men
- Frame Style: Square/Rectangle
- Frame Material: Recycled Acetate
- Country of Origin: Japan
Description
Montblanc MB0266O Eyeglasses feature durable, lightweight recycled acetate frames with a square/rectangle shape designed for men. Crafted in Japan, they offer reliable comfort and precise detailing.
The minimalist design suits both formal and casual settings, combining function with subtle style.
Montblanc MB0266O Recycled Acetate Square/Rectangle Men Eyeglasses
- Style Name: MB0266O
- Designer: Montblanc
- Gender: Men
- Frame Style: Square/Rectangle
- Frame Material: Recycled Acetate
- Country of Origin: Japan