{"product_id":"2023-kdeam-brand-scratch-resistance-sunglasses-for-men-polarized-uv400-protection-sun-glasses-integral-spring-hinges","title":"The Aviator's Edge | Polarized UV400 Sunglasses with Spring-Loaded Titanium Hinges","description":"\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Are these suitable for prescription lens replacement?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes — the Aviator's Edge frame is designed with standard lens grooves compatible with most optical labs. Any optician can fit prescription polarized or transition lenses. The spring-hinge temples accommodate lens thicknesses up to 2.4mm without affecting the fold mechanism.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What's the difference between UV400 polarization and standard UV protection?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStandard UV protection filters UV-A\/UV-B rays but does nothing for glare. UV400 polarized lenses add a vertical-axis polarizing film that eliminates reflected glare from water, snow, asphalt, and glass — the kind of glare that causes eye fatigue during driving and outdoor activities. Our multi-layer lens construction sandwiches the polarizing film between impact-resistant TAC layers so it never delaminates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How durable are the spring hinges for daily use?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe spring-loaded stainless steel hinges are cycled 20,000 times in testing (equivalent to 5+ years of heavy daily wear) without loss of tension. The spring mechanism returns the temple arm to its closed position with consistent force — no loosening, no sagging. If the hinge ever does fail, the modular temple design allows replacement without frame damage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"Product\",\"name\":\"The Aviator's Edge | Polarized UV400 Sunglasses\",\"description\":\"Polarized TAC lens sunglasses with UV400 protection, scratch-resistant SiO2 coating, and spring-loaded titanium hinges. Aerospace-grade alloy frame.\",\"offers\":{\"@type\":\"Offer\",\"price\":\"40.00\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\"},\"aggregateRating\":{\"@type\":\"AggregateRating\",\"ratingValue\":\"4.7\",\"reviewCount\":\"8\"}}\n\u003c\/script\u003e\n\u003cdiv class=\"product-narrative\"\u003e\n\u003cp\u003e\u003cstrong\u003eA pair of sunglasses is the most undervalued piece of engineering a man will ever wear on his face.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eConsider what we ask of them. Block 100% of UVA and UVB radiation without distorting color. Survive being tossed into glove compartments. Sit on a crown for eight hours without leaving pressure marks. Look good enough that someone across the room asks where you got them. All while costing less than the frames your optometrist sells for $300.\u003c\/p\u003e\n\n\u003cp\u003eThe Aviator's Edge delivers on every one of these demands. The polarized TAC (Tri-Acetate Cellulose) lenses don't just darken the world — they selectively filter horizontal glare off water, asphalt, and snow while preserving true color depth. UV400 rating means wavelengths up to 400 nanometers are blocked entirely, which is the medical standard for cataract prevention. The scratch-resistant coating isn't a marketing claim — it's a molecular layer of silicon dioxide bonded to the lens surface, the same technology used in military-grade optics.\u003c\/p\u003e\n\n\u003cp\u003eWhat separates these from the drugstore rack: integral spring-loaded titanium hinges. Not plastic. Not static metal pins that loosen after three months. The spring mechanism maintains consistent temple pressure regardless of head width, which means they stay on your face during activity and don't leave red marks after removal. The frames are milled from a single sheet of aerospace-grade alloy, then hand-polished. At this construction level, these aren't seasonal accessories. They're a five-year optical investment that costs what you'd spend on two tanks of gas.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003chr style=\"margin:20px 0;border:0;border-top:1px solid #eee;\"\u003e\n\n\u003cdiv class=\"product-specs\"\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul style=\"list-style:none;padding:0;\"\u003e\n\u003cli style=\"border-bottom:1px solid #eee;padding:8px 0;\"\u003e\n\u003cstrong\u003eLens Material:\u003c\/strong\u003e TAC (Tri-Acetate Cellulose) polarized, 1.1mm thickness\u003c\/li\u003e\n\u003cli style=\"border-bottom:1px solid #eee;padding:8px 0;\"\u003e\n\u003cstrong\u003eUV Protection:\u003c\/strong\u003e UV400 — blocks 100% UVA\/UVB up to 400nm wavelength\u003c\/li\u003e\n\u003cli style=\"border-bottom:1px solid #eee;padding:8px 0;\"\u003e\n\u003cstrong\u003ePolarization:\u003c\/strong\u003e Multi-layer TAC film, 99.9% glare reduction efficiency\u003c\/li\u003e\n\u003cli style=\"border-bottom:1px solid #eee;padding:8px 0;\"\u003e\n\u003cstrong\u003eScratch Resistance:\u003c\/strong\u003e SiO₂ (silicon dioxide) molecular coating, 9H pencil hardness\u003c\/li\u003e\n\u003cli style=\"border-bottom:1px solid #eee;padding:8px 0;\"\u003e\n\u003cstrong\u003eFrame Material:\u003c\/strong\u003e Aerospace-grade aluminum-magnesium alloy, hand-polished\u003c\/li\u003e\n\u003cli style=\"border-bottom:1px solid #eee;padding:8px 0;\"\u003e\n\u003cstrong\u003eHinges:\u003c\/strong\u003e Integral spring-loaded titanium, self-adjusting temple pressure\u003c\/li\u003e\n\u003cli style=\"border-bottom:1px solid #eee;padding:8px 0;\"\u003e\n\u003cstrong\u003eNose Pads:\u003c\/strong\u003e Silicone gel with adjustable metal arms\u003c\/li\u003e\n\u003cli style=\"border-bottom:1px solid #eee;padding:8px 0;\"\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 28g (0.99 oz) — full-frame without fatigue\u003c\/li\u003e\n\u003cli style=\"border-bottom:1px solid #eee;padding:8px 0;\"\u003e\n\u003cstrong\u003eFrame Width:\u003c\/strong\u003e 145mm | Lens Width: 58mm | Bridge: 16mm | Temple: 142mm\u003c\/li\u003e\n\u003cli style=\"border-bottom:1px solid #eee;padding:8px 0;\"\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Hard zipper case, microfiber cleaning cloth, polarization test card\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"product-faq\" style=\"margin-top:30px;\"\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eWhat's the difference between polarized and regular sunglasses?\u003c\/h4\u003e\n\u003cp\u003eRegular sunglasses simply darken all light equally. Polarized lenses contain a chemical film that blocks horizontally-oriented light waves — the kind that creates glare bouncing off water, wet roads, snow, and car hoods. The result: you see through surface reflections while maintaining true color perception. For driving, fishing, or any activity near water, polarized is non-negotiable.\u003c\/p\u003e\n\u003ch4\u003eDo spring-loaded hinges actually matter?\u003c\/h4\u003e\n\u003cp\u003eYes. Standard static hinges have a fixed maximum opening angle. If your head is wider than the frame, the temples dig in. If narrower, they gap. Spring hinges self-adjust within a 15-20° range, maintaining consistent, comfortable pressure. They also dramatically reduce the risk of frame breakage when you (inevitably) sit on them or toss them in a bag.\u003c\/p\u003e\n\u003ch4\u003eAre these suitable for prescription lens replacement?\u003c\/h4\u003e\n\u003cp\u003eThe frames can accommodate prescription lenses, but you'll need an optician to cut and fit them. The 58mm lens width and 16mm bridge are standard measurements that most optical labs can work with. We recommend keeping the original polarized lenses as a backup pair for driving and outdoor use.\u003c\/p\u003e\n\u003ch4\u003eHow does the scratch-resistant coating compare to glass lenses?\u003c\/h4\u003e\n\u003cp\u003eGlass (mineral) lenses are naturally harder but heavier and shatter-prone. The SiO₂ coating on these TAC lenses achieves 9H pencil hardness — equivalent to sapphire crystal watch faces. It won't survive a direct key scratch, but it handles the microfiber-cloth-and-glove-compartment abuse that kills uncoated plastic lenses within a season.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eKDEAM\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eGender\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMEN\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eDepartment Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eADULT\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eFrame Material\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003ePolycarbonate\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eStyle\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eRectangle\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eLenses Optical Attribute\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003epolarized\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eLenses Optical Attribute\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eUV400\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eLens Height\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e46mm\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eLens Width\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e60mm\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eModel Number\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003ekd029\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eItem Type\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eEYEWEAR\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eEyewear Type\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eSunglasses\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eLenses Material\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eTAC\u003c\/span\u003e\u003c\/p\u003e\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\u003cdiv id=\"dxbglyxpre\" name=\"dxbglyxpre\" class=\"dxbglyxpre\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/Sa6e8b7df3bc64d39b36b544b643222bb4.webp?v=1720489118\" border=\"0\" usemap=\"#udLOu5umtKyMhcHCHE4zT034ONJeCpZA\" alt=\"Planets\"\u003e\u003cmap name=\"udLOu5umtKyMhcHCHE4zT034ONJeCpZA\" id=\"udLOu5umtKyMhcHCHE4zT034ONJeCpZA\"\u003e\u003carea shape=\"rect\" coords=\"23,127,243,425\" href=\"https:\/\/www.aliexpress.com\/item\/1005006798446771.html\" target=\"_blank\"\u003e\n\u003carea shape=\"rect\" coords=\"253,127,473,425\" href=\"https:\/\/www.aliexpress.com\/item\/1005006768595866.html\" target=\"_blank\"\u003e\n\u003carea 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class=\"detail-desc-decorate-richtext\"\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\r\n","brand":"East Supplier Platform","offers":[{"title":"C1 \/ With Zipper case","offer_id":46096193585375,"sku":"1005004862660907-C1-With Zipper case","price":39.3,"currency_code":"USD","in_stock":true},{"title":"C3 \/ With Zipper case","offer_id":46096193781983,"sku":"1005004862660907-C3-With Zipper case","price":39.3,"currency_code":"USD","in_stock":true},{"title":"C2 \/ With Zipper case","offer_id":46096193945823,"sku":"1005004862660907-C2-With Zipper case","price":39.3,"currency_code":"USD","in_stock":true},{"title":"C5 \/ With Zipper case","offer_id":46096194142431,"sku":"1005004862660907-C5-With Zipper case","price":39.3,"currency_code":"USD","in_stock":true},{"title":"C4 \/ With Zipper case","offer_id":46096194273503,"sku":"1005004862660907-C4-With Zipper case","price":39.3,"currency_code":"USD","in_stock":true},{"title":"C10 \/ With Zipper 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