Polarized Photochromic Sunglasses UV400 Oval Square Small Alloy Half Rim Frame Lightweight Sports Bicycle Fishing Driving B1087 [FEISEDY] Men's

[Caution] Photochromic lenses change color depending on the strength of ultraviolet rays in sunlight, so please be aware that the color change and photochromic effect may be weaker in places with weak ultraviolet rays such as inside a workplace, indoors, or on cloudy days. Please check the photochromic effect using the included ultraviolet light (blue light) and test card. [With photochromic function] Photochromic lenses are high-tech lenses that change color depending on the concentration of UV rays. They can be used as glasses indoors and as sunglasses outdoors, allowing you to enjoy two different uses with one pair of lenses. In addition, we also offer lenses without photochromic function, and those who prefer a darker lens color can choose non-photochromic lenses. [No need to use glasses and sunglasses separately] Photochromic lenses take on color in response to ultraviolet rays, so they appear almost transparent indoors where there is no ultraviolet light. It feels strange to wear tinted sunglasses indoors, but you can wear photochromic sunglasses all the time. Since there is no need to use them differently depending on the situation, you can reduce the effort and luggage. In addition, even if you spend the whole day outside or on days when the weather is prone to change, you can stay comfortable because the lens color changes depending on the brightness. [Stylish] The square design that matches well with Japanese facial features and the combination of thin temples beautifully accentuate the contours of your face, making these fashionable sunglasses. [Size and specifications] Overall frame width: approx. 144mm Overall frame height: approx. 49mm Lens diameter: approx. 72mm Temple length: approx. 136mm Bridge width: approx. 11mm Frame material: Al-Mg alloy Lens: UV400 polarized lens (with and without photochromic function) The frame is made of high-quality Al-Mg alloy, which feels smooth to the touch. It also has excellent elasticity and is resistant to deformation due to high and low temperatures, allowing you to use it for a long time. The hinges are made of reinforced metal, making them strong and durable. The nose pads are made of rubber, which is non-slip and comfortable. They are lightweight and reduce the burden on your ears and nose, so you can wear them for long periods of time without feeling any tightness or pain, making them comfortable to wear.