Tifosi sent me the Seek FC, which is a single lens sunglass that comes with their Fototec (photocromatic) lenses. Photochromatic lenses change the tinting in response to changing light conditions. In bright sunlight, the lenses get darker and in lighter conditions, the lenses lighten. It takes about 10 seconds for the sunglasses to fully transition, but I never even notice the change. The Seek FC that I tested came with the Smoke Fototec lens, which let 47.4%-15.2% of the light through. They are perfect for running around dawn or dusk, which is when I do my long runs. I was able to leave the house when it was sunny and get back when it was fairly dark and never had to take the sunglasses off. They might not be quite dark enough for the brightest of conditions.
The frames are made with TR90, which is an extremely durable nylon resin that prevents breaking and stretching. The ear pads are adjustable and so are the nose pads. The sunglasses in general are extremely light weight and do not bounce when you run. They are made to fit people with small to large sized faces. The one thing I didn’t like was that I could not put the sunglasses on top of my head without feeling like they would fall off.
The Seek FC comes with both a hard case as well as a soft microfiber bag. All Tifosi products come with a lifetime warranty against manufacture defects.
The Fototec lenses are great for running in variable lighting conditions
Great fit, doesn’t bounce around
Great price $69.95 on Amazon
I wish they would stay on top of my head
These are some awesome shades and the price is excellent. I read reviews that some people have had issues with these glasses breaking at the nose bridge when they were cleaning them. I have not had any issues and when I talked to Tifosi, they said that they have addressed that issue. If they break, you can send them back for a replacement as well. I would recommend getting these sunglasses, especially if you tend to run in the morning or evening when lighting might change throughout your run.
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Note: I received this product in exchange for a review. The review is my personal opinion of the product and I was not required to give a particular opinion of it. I am not a doctor, so please use all of the products that I review at your own risk.