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Oakley DesGlasses & Sunglasses


4.3 / 5 (5)  |   80% of customers recommend this product

512101 OX5121 LIMIT SWITCH Glasses, Oakley

FREE Lens Coatings.   FREE Delivery.

Blue Light Digital Protection Lenses

Protect your eyes from UV & Blue Light with BlueGuard Digital Protection lenses from $17.75.

Colour & Size (mm):

Arm Bridge Lens Height Size help »
139 16 53 31 Discontinued
139 16 55 32 Fits most

Customers suggest fit is As expected (80%)

80% of customers describe this fit as: As expected

After the customer has received the product, we ask how they felt their new glasses fitted based based on the size information we have provided. This is a breakdown of the data gathered so far...

Too small


Moderately small


As expected


Moderately large


Too large


  • Available to Order   More Details
  • Available to Order   More Details
  • Available to Order   More Details
  • Available to Order   More Details
  • FREE Delivery on orders over $69.58
  • Dispatched from Westgate on Sea, UK

 Single vision items usually completed within 7-10 working days. Allow longer for multifocals, complex prescriptions & tints - Details »

 Single vision items usually completed within 7-10 working days. Allow longer for multifocals, complex prescriptions & tints - Details »

 Single vision items usually completed within 7-10 working days. Allow longer for multifocals, complex prescriptions & tints - Details »

 Single vision items usually completed within 7-10 working days. Allow longer for multifocals, complex prescriptions & tints - Details »

Available Colours...

  • 512101 BLACK
  • 512104 MIDNIGHT BLUE

Product Overview



Product SKU


Product ID /GTIN


Suitable for

Single Vision


Freeform varifocal from $47.33

Spring hinge

Frame Material

Titanium, Metal

Suitable for Tints


Manufacturers Case & Cloth where available (for some designer brands, a microfibre bag will be provided in place of hard/soft case)

Item Warranty

12 Months Warranty

*Free Single Vision 'Basic' (1.5 index) lenses with Anti-Reflection coating available for SPH ±6.00 and CYL ±2.00 powers. Our 'Basic' lenses are unavailable for prescriptions exceeding this range. An additional $29.58 is charged for Standard 1.5 lenses with prescriptions exceeding this range due to production complexities. Free delivery available on orders over $69.58.

Licensing Restriction

This product may not ship to your country. Check link below for full details.

Full Details

Order by phone

Call us on 03303 801 190
Mon. to Fri. 9am - 5pm GMT

Secure Payments

All major payment cards & methods accepted.

100% Satisfaction.

Not happy with your new glasses? We'll give you your money back! Full T&Cs.

Customer Reviews

4.3 / 5 - 5 Review(s) - Add your review

 80% of customers recommend this product (4 of 5)

  Least worse

1st September 2020

These weren't the glasses I wanted but every style I chose I received the reply that it was not available. In the end I chose least worst. I still fail to understand why spectacle frames are so expensive and what fashion houses know about optometry but as stupidity is the norm then maybe that is why.

Fit - As expected I wouldn't recommend this product

  The Next Best Specs after Keel-Blade

4th September 2018

I likes the Keel-Blade a lot, after years of wearing it. it finally worn-out.
I decided to Buy from SelectSpecs again. However, after ordering it, I was notified that Keel-Blade was out of stock.
After research all the specs from Oakley, I selected Limit Switch.
The Specs is good, although it is also using Titanium, but it is a bit heavier than Keel-Blade. Hope it can last longer.

Fit - As expected I'd recommend this product

  Great for comfort and style.

29th June 2018

I have been a fan of Oakley glasses for years and especially their titanium frames. They are extremely lightweight and comfortable if you require to wear glasses all day and in all conditions. They are also stylish and robust. They may be a bit more expensive but over years of daily use and comfortable wearing I think they are really worth it. These ones tick all of the previous boxes and are available in several colors.I chose the midnight blue and am thoroughly delighted with them. They fitted perfectly out of the box but would be simple to adjust if you wanted to. I have worn glasses for decades and these are in the joint top of all time - the other is also Oakley but transition lenses and slightly back level prescription which will serve as spare. Fantastic - treat yourself !!

Fit - As expected I'd recommend this product

  Well Priced and Authentic

10th January 2018

Though the shipping was a little long but it's all worth the wait. Item came nicely protected and with all its necessary items intact. Genuine product, will not hesitate to purchase more in the future. Thank you Selectspecs

Fit - As expected I'd recommend this product

  Oakley prescriptions

2nd October 2017

Really light pair of glasses, really pleased overall with style, colour and lens vision

Fit - Moderately small I'd recommend this product

Product Help

Will this frame suit me?

Not sure if this frame is right for you? See our guide to face shapes & frame styles here.

What lenses should I choose?

Our virtual dispenser can recommend you the perfect lenses for your prescription - You can also find out more about our lenses here or see our lens price list here.

How and where are my glasses made?

All prescription glasses are made to an incredibly high standard in one of our labs. Find out more here.

Help with frame sizes

Finding the correct frame size to suit you requires you to know a little about the different measurements that are used.  Size information is normally broken down in to arm / temple length (ranges between 120 - 150mm), bridge width (ranges between 14 - 24mm, and lens width (ranges between 40 - 62mm).  We also include a frame height measurement where possible, this can vary depending on frame style.

If you require further help, please do not hesitate to contact our customer service team on 03303 801 190 (Mon - Fri, 9am - 5pm) for further assistance.

I already have glasses, how do I find out their size?

If you have a pair of glasses that are a perfect fit, you can usually find the frame size information on the frame - usually on the arm or the bridge.

Size Guide - Frame Dimensions

What to look for?

What to look for?
You will often find a variety of information on the frame, including model number, branding and frame sizing. The numbers you are looking for will be similar to this format 150 - 22 - 50 although this can vary from manufacturer to manufacturer.  These numbers provide the following information:-

150 - Arm / temple size (in mm), a 3 digit value normally ranging from 120 - 150.
22 - Bridge size (in mm), a 2 digit value normally ranging from 14 - 24.
50 - Lens width (in mm), a 2 digit value normally ranging from 40 - 62.

I want a size that's not listed

We do our best to ensure we stock all available items from all our supplied brands so if an item is not listed it may be out of stock or discontinued. If you do not see the frame size you require please contact us through our Customer Services system where we will try to assist you.

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