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Sigma DesGlasses & Sunglasses

Sigma SDM3021

4.8 / 5 (6)  |   100% of customers recommend this product

Grey/Mustard/Red SDM3021 Glasses, Sigma

FREE Single Vision Basic Lenses & Coatings*.

+ Free Second Pair.

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 »
140 18 53 39 Fits most

Customers suggest fit is As expected (100%)

100% 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
  • 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 »

Product Overview


Sigma SDM3021

Product SKU


Suitable for

Single Vision


Freeform varifocal from $47.33

Spring hinge

Frame Material

Plastic, Acetate

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.

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

4.8 / 5 - 6 Review(s) - Add your review

 100% of customers recommend this product (6 of 6)

  astheticly pleasing but....

24th November 2020

these glasses look good but with prolonged wear they become uncomfortable. Edges are quite sharp/right-angled below bridge which makes them uncomfortable at times. But they are cool...............

Fit - As expected I'd recommend this product


13th August 2020

These glasses arrived yesterday, they're the best quality and I can't reccomend them enough! I treated myself to the light adaptive lenses with this pair and it's the best thing I ever did! I suffer ALOT with migraines and these lenses have been amazing in the 24 hours I've had them, due to the quick effectiveness of the light adaptation I no longer strain my eyes in the sun.

Fit - As expected I'd recommend this product


20th July 2020

I like the colour combination of my frames. They fit quite well. Being able to personalize my frames to my taste was good. Despite having the border restrictions and delays, my glasses arrived within a considerable time period and in good condition too. I am happy with my purchase and choice of frames.

Fit - As expected I'd recommend this product

  Initially gave a poor review.

12th March 2020

I initially gave this company a bad review and before I received my glasses..I ordered them with a party I was attending in mind..the glasses didn't arrive in time and so my initial review was written with that at the forefront of my mind and so clouded my judgment . The glasses arrived today and they are everything I had in mind. .they are superb value and I would heartily recommend this company to anyone. All I would inform anyone that was thinking of ordering a pair for a certain occasion is to allow a decent amount of time for them to be manufactured to the specification and prescription they submitted.. mine are varifocals so anyone thinking of submitting an order should bear this mind.. believe you me you won't be disappointed.

Fit - As expected I'd recommend this product

  Still going strong after 2 years

7th November 2019

Bought these 2 years ago as my reading glasses. Just had the lenses changed for my updated prescription, still look amazing and the quality is amazing.

Fit - As expected I'd recommend this product

+ Show 5 more

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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