FEISEDY Polarized Photochromic Sunglasses with UV400 for and B1087 Men's Protection, Oval, Square, Small, Alloy, Half-Rim Frame, Lightweight, Sports,

[Note] Photochromic lenses change color depending on the strength of UV rays in sunlight, so please be aware that the color and photochromic effect may be weaker in places with weak UV rays, such as indoors, inside a building, or on cloudy days. Please check the photochromic effect using the included UV light lamp (blue light) and test card. [Photochromic Lenses] Photochromic lenses are high-tech lenses that change color depending on the intensity 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. We also offer lenses without photochromic functionality, so if you prefer a consistently darker lens color, you can choose non-photochromic lenses. [No need to separate glasses and sunglasses] Photochromic lenses change color in response to UV rays, so they appear almost transparent indoors when not exposed to UV rays. While wearing tinted sunglasses indoors can feel strange, photochromic sunglasses can be worn all the time. Since you don't have to switch between glasses depending on the situation, you can reduce the hassle and luggage you need. Furthermore, even if you spend the whole day outdoors or on days with changeable weather, you can stay comfortable because the lens color changes depending on the brightness. [Stylish] These fashionable sunglasses feature a square design that complements Japanese facial features and thin temples that beautifully accentuate the contours of your face. [Size & 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 Lenses: UV400 Polarized Lenses (with and without photochromic function) The frame is made of high-quality Al-Mg alloy, providing a smooth feel against the skin. It also offers excellent elasticity and is resistant to deformation in high and low temperatures, ensuring long-lasting use. The hinges are made of reinforced metal for strength and durability. The nose pads are made of rubber for a non-slip, comfortable fit. The lightweight design reduces strain on the ears and nose, ensuring comfortable wear without any tightness or pain, even when worn for long periods of time.