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How do they work?

You might have heard of clip on sunglasses?  Well, welcome to slip in sunglasses!  Our patent pending design allows you to slip in your colored sunglass lenses in front of clear optical lenses.  When you want to remove the sunglass lenses or just want to change your color, you push up on the side and slip out your lens.   Voilà!

Since the lenses are designed with handles, you never have to worry about fingerprints!  And when not in use, you can just slide your Slip In lenses into your included leather lens wallet to keep them safe.

Click Here To Watch A Tutorial


Every pair of AVIEW glasses has been manufactured using TR90, an incredible new material that you’re sure to love. So what is TR90?

TR90 was produced through Swiss technology as a thermoplastic material that is incredibly durable, flexible, and lightweight. Glasses made with TR90 are extremely comfortable because they have a flexible quality. Since they are flexible, they can bend under pressure and contour your face comfortably.

This flexibility also makes TR90 glasses resilient to damage. Because the material is pliable, they are far less likely to break or bend from impact. If you’re guilty of constantly dropping your glasses, fear not! TR90 frames can prevail!

Finally, and most remarkable of all, TR90 glasses are supremely lightweight. Even the boldest, biggest styles don’t feel bulky when made with TR90. The thermoplastic material has a barely-there feel that you truly have to wear to believe.

What are the lenses made of?

All of our slip in lenses are made from triacetate cellulose – or TAC for short. There are 7 layers that make up TAC lenses. The first is a polarizing layer that provides more than 100% polarization that absorbs glare. The second and third layer allows durability that resists harsh environments. The fourth and fifth are UV absorbing layers that absorb over 99% ultraviolet rays. The last two layers, are shock proof layers that increase impact and scratch resistance.

The best TAC Polarized Lens are those that block more than 99% of harmful UV rays with wavelengths up to 400 nanometers. Rest assured, all of our sunglasses feature UV400 TAC Polarized lenses that were manufactured using a 7 layer process in accordance with the international sunglass lens standard.

Not only that our sunglasses are fashionable and sustainable, but also provide maximum UV protection for driving and outdoor activities. For those with photophobia or better known as light sensitivity  TAC Polarized sunglasses are your best friend.

Do the slip in lenses work in any AVIEW glasses frame?

Yes!  They do.  You can swap Slip In lenses with friends, replace lost ones, and constantly experiment with new colors inside any Círculo frame.


Absolutley!  We don’t currently offer a RX upgrade on the website but just take them in to your favorite optometrist and they’ll be happy to add.  The Slip In lenses are designed to slide in front of a pair of optical lenses. The glasses ship with non prescription clear optical lenses in each frame but you can add your own prescription lenses easily. The Slip In lenses themselves are not prescription.

Perfect for prescription wearers or people looking for non prescription tinted sunglasses. Either way you win!

Do Colors really affect Our mood?

We think so but everyone is different. Although we don’t make any scientific claims ourselves, here are some great articles to help you make up your own mind:

  1. The Yale Scientific

  2. University of Toronto & Science Daily

  3. US National Library of Medicine National Institutes of Health

  4. Zeiss International

Will you come out with other frame designs?

Of course! We are already in the designing phase for many more styles of AVIEW frames. Please feel free to send us a message, we are always open to user feedback about what styles YOU would like to see!

Will you come out with more Slip in lens colors?

Absolutely! Many more on the way. Please feel free to send us a message, we are always open to user feedback about what colors YOU would like to see!

Aview Sunglasses