How Artificial Blue Light is Damaging Your Performance


1-    Can I buy your products in a store?

For now we only sell online but please stay tuned for updates on where we might be selling them. Sign up here to get updated.


2-    Why would we pick SIIZ and not another brand?

Please click here to learn about SIIZ.


3-    Do you ship around the world?

Yes if you have a valid address we will get to you.


4-    How much does shipping to my country cost?



5-    What is your exchange and return policy?

It’s only a matter of time until you SIIZ the results of our technology. Unlike other brands we have a 90 day exchange and return policy for non-prescription glasses. Click here for more details on our return policy.




6-    Which lenses are best for my needs?

Click here for SIIZ DayGo’z

Click here for SIIZ Eve’z

Click here for SIIZ Sleeper’z


7-    How long does it take for me to receive my orders?



8-    When do I wear my SIIZ?

-       Yellow DayGo’z – Indoor blue light protection for day time use.

-       SIIZ Eve’z –  Evening time protection for use when the sun sets and you don’t want to sleep.

-       SIIZ Sleeper’z – For full blue light protection at night.


9-    Scientific studies for showing harmful effects of blue light.

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10- Are SIIZ glasses heavier than normal glasses?

Our glasses weigh only around 7 grams per pair which is much lighter than regular sunglasses.


11- Tell me about the materials you use for your glasses.

We have put intensive work to consciously choose sustainably harvested ebony wood which is known for its durability. We work with FSC certified wood only.

We also have high grade stainless steel material that is lightweight and durable.


And we have sustainable plastic polymer that is also durable and lightweight.

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