Nina Mûr - Eyeglasses
Nina Mûr MÉTRICA TRIANGLE
MÉTRICA TRIANGLE
The photo shows your frame with the temple, tip and nosepad you choose. If a part can’t be shown on the photo yet, it appears in the card on the image — your frame is still made with it. Each nosepad also keeps a small dot in its real material colour, and every frame is handcrafted to order in the combination you choose.
- Handcrafted to order in Madrid from sustainable Finnish birch wood
- Authorized Nina Mûr stockist · lightweight, flexible, durable wood
- Free US shipping · prescription lenses available
Every Nina Mûr frame is individually handcrafted to order in Madrid, so please allow approximately 3–4 weeks for the wider palette. While your frame is made we can prepare your lenses so your finished pair arrives ready to wear. Contact us to discuss colours and fit, or begin your prescription with our custom lens builder.
Want these as prescription glasses? We fit, edge and mount your custom lenses so your Nina Mûr frame arrives ready to wear.
Explore all Metrica_triangle finishes
Every Nina Mûr Metrica_triangle is handcrafted to order from sustainable Finnish birch wood in Madrid. Browse each real colour and finish below — select one to preview it in the configurator above.
Nina Mûr Métrica Triangle at a glance
Nina Mûr makes Métrica Triangle in Madrid, to order, from laminated birch wood, with stainless-steel temples and Italian acetate tips. With 51 mm lenses and a 16 mm bridge, the listed front is 146 mm wide and 53 mm high, with 145 mm temples. There are 71 finishes to choose from. Prescription lenses can be added when the frame goes into the bag.
Specifications
| Frame width (listed) | 146 mm |
|---|---|
| Lens width | 51 mm |
| Frame height | 53 mm |
| Bridge | 16 mm |
| Temple | 145 mm |
| Custom sizing | Lens 47 to 55 mm, frame width 134 to 158 mm (as calculated on the page) |
| Materials | Laminated birch-wood front; stainless-steel temples; Italian acetate tips |
| Finishes | 71, handcrafted to order |
| Temple options | Gunmetal (9mm), Gold (9mm) |
| Temple tips | 9 colours |
| Nosepad | No nosepad, Transparent nosepad, Titanium / Beta-Ti nosepad |
| Prescription | Offered when you add the frame (lens builder), or frame only |
| Frame price | $425.00 to $623.33 |
Compare with similar models
| Nina Mûr Jason | The same 146 mm listed front width as Métrica Triangle; a shallower front, 45 mm high (Métrica Triangle: 53 mm), larger 52 mm lenses (Métrica Triangle: 51 mm), a wider 20 mm bridge (Métrica Triangle: 16 mm). |
|---|---|
| Nina Mûr Rachel | A shallower front, 48 mm high (Métrica Triangle: 53 mm), a wider 19 mm bridge (Métrica Triangle: 16 mm); a narrower listed front, 145 mm against Métrica Triangle's 146 mm. |
| Nina Mûr Elisa | Larger 52 mm lenses (Métrica Triangle: 51 mm), a wider 18 mm bridge (Métrica Triangle: 16 mm); a narrower listed front, 143 mm against Métrica Triangle's 146 mm. |
Description
Description
Nina Mûr - Métrica Triangle
Nina Mûr combines modern design with sustainable craftsmanship, offering handcrafted wooden glasses made in Madrid. Known for their lightweight feel, bold shapes, and customizable finishes, Nina Mûr frames are created from responsibly sourced birch wood using an advanced multi-layer lamination process. The result is durable, expressive eyewear that blends fashion, innovation, and eco-friendly values.
Experience distinctive design and premium European craftsmanship through Nina Mûr eyewear and more exclusive designers at Gazal Eyecare, a luxury independent boutique optical in Roswell, GA.
MEASUREMENTS:
Eye: 51mm
Bridge: 16mm
Temple: 145mm
PRODUCT DETAILS:
Material: Birch wood frame front and stainless-steel temples with Italian acetate tips
Please note that Nina Mûr frames can accommodate prescriptions up to 8 diopters. Please allow for extra delivery time for orders involving color customization.
Free standard shipping on orders $250+. Most eyewear ships made-to-order with your prescription — exact ship dates confirm after checkout. Need it faster? Express shipping is available.
Frequently Asked Questions
How wide is Nina Mûr Métrica Triangle?
How wide is Nina Mûr Métrica Triangle?
Nina Mûr lists Métrica Triangle at 146 mm wide and 53 mm high, on 51 mm lenses and a 16 mm bridge. Hold that figure against the front of a frame you already wear comfortably; the bridge shape and how the frame is adjusted also play a part.
Can the size of Métrica Triangle be adjusted?
Can the size of Métrica Triangle be adjusted?
Yes. Lens width can be set from 47 to 55 mm with the custom-size option (2 or 4 mm smaller or larger), and the front width shown moves from 134 to 158 mm. You see the adjusted measurements before adding the frame to the bag; custom sizes are handcrafted to order.
Can I choose the temples and nosepads on Métrica Triangle?
Can I choose the temples and nosepads on Métrica Triangle?
Yes. On this page you pick 9 mm gunmetal or 9 mm gold temples, one of 9 tip colours, and no nosepad, transparent nosepad or titanium / Beta-Ti nosepad. It is a laminated birch-wood front from Madrid on stainless-steel temples with Italian acetate tips.
Does Métrica Triangle come with prescription lenses?
Does Métrica Triangle come with prescription lenses?
Yes. When you add Métrica Triangle to your bag, the page offers prescription lenses through Gazal's lens builder. Expect extra delivery time if the colour is customised.
What is the difference between Métrica Triangle and Jason?
What is the difference between Métrica Triangle and Jason?
Jason: the same 146 mm listed front width as Métrica Triangle; a shallower front, 45 mm high (Métrica Triangle: 53 mm), larger 52 mm lenses (Métrica Triangle: 51 mm), a wider 20 mm bridge (Métrica Triangle: 16 mm). See the comparison table on this page for Rachel and Elisa too.
Is this frame 100% authentic?
Is this frame 100% authentic?
Yes. Gazal Eyecare is an authorized dealer for every brand we carry — Jacques Marie Mage, Lindberg, Kuboraum, Akoni, Anne et Valentin, Thierry Lasry, Maui Jim, and our house brand Gazal Eyewear. Every frame is 100% authentic and sourced directly, with full manufacturer support.
How long does shipping take?
How long does shipping take?
- Standard Orders: Ship as soon as ready and arrive within 3–7 business days (domestic).
- Prescription Orders: Ship immediately upon completion of your custom lenses.
- Special Orders & Pre-Orders: Require additional production time. For example, custom LINDBERG frames are ordered directly for you and take roughly 4–5 weeks to arrive before lens crafting begins.
What is your return policy?
What is your return policy?
All sales are final and we do not offer monetary refunds on any brand — many of our pieces are one-of-a-kind or very small production. At our discretion we may offer store credit on file, or a one-time exchange (fees may apply). What we can offer, and any fees, depend on the brand, on whether the item is custom or made-to-order, and on any lens customizations — prescription lenses, tints and coatings are made specifically for you, so they are custom and generally non-returnable. To be considered, contact us within 3 days of delivery for shipped orders, or 3 days of purchase in store; items must be unworn and in original condition with the original case and packaging. Store credit never expires; once a store credit has been used, that purchase is final.
Can I try these on virtually before I buy?
Can I try these on virtually before I buy?
Yes, try our Custom Lens Builder tool and use the virtual try-on option to see the frame on your own face before ordering.
About Nina Mûr
More than eyewear — Nina Mûr is wearable architecture. Handcrafted in Madrid from sustainably sourced birch wood laminates and engineered with a modular design system, each frame is an artistic statement as well as a technical innovation. Bold silhouettes, unexpected color pairings, and sculptural lines define the collection, appealing to those who seek individuality over convention.
Meticulously produced by a small workshop in Spain, Nina Mûr blends cutting-edge production techniques with the intimacy of slow design. Each pair is lightweight, durable, and fully customizable — an expression of craftsmanship, design integrity, and ethical sourcing.
Gazal Eyecare proudly curates Nina Mûr for eyewear collectors and design enthusiasts alike. Whether optical or sun, these frames are made for those who treat style as a form of personal architecture.
Explore the Nina Mûr collection and discover eyewear unlike anything else in the world.