{"product_id":"kastking-polarized-sport-sunglasses-for-men-women-smoke-lenses-tac-polarized-uv400-protection","title":"KastKing Polarized Sport Sunglasses for Men \u0026 Women — Smoke Lenses, TAC Polarized + UV400 Protection","description":"\u003cp\u003e\u003cstrong\u003eKastKing FlatRock Polarized Sport Sunglasses are lightweight, impact-resistant shades with polarized TAC lenses and full UVA\/UVB protection designed for active outdoor use.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese sport sunglasses combine polarizing optics, a scratch-resistant PuriVex coating, and flexible Grilamid frames to deliver clear vision and all-day comfort during activities like fishing, driving, cycling, and hiking. Designed for both men and women, the FlatRock balances durability with low weight and includes protective storage accessories so the lenses stay pristine between uses.\u003c\/p\u003e\n\n\u003ch3\u003eHow do the lenses reduce glare and protect my eyes?\u003c\/h3\u003e\n\n\u003cp\u003eThe FlatRock lenses use polarized TAC material that helps cut horizontal glare from water, road surfaces, and snow, improving visual comfort and reducing eye strain. KastKing applies a PuriVex PROTECTIVE COATING to the lens surface to repel dirt, oil, and water and to resist scratches from everyday use.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003ePolarized TAC lenses for glare reduction and clearer contrast\u003c\/li\u003e\n  \u003cli\u003ePuriVex coating repels contaminants and improves cleaning\u003c\/li\u003e\n  \u003cli\u003eLens options (smoke, brown, copper, green) match varying light conditions\u003c\/li\u003e\n  \u003cli\u003eMeets or exceeds U.S. ANSI standards for UV protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre these frames durable enough for active sports?\u003c\/h3\u003e\n\n\u003cp\u003eYes — the frames are built from Grilamid, a lightweight, flexible polymer used in demanding applications where strength and shape retention matter. That material provides impact resistance and heat tolerance so the sunglasses hold their shape and stay comfortable through vigorous movement and changing conditions.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eGrilamid construction for exceptional flexibility and toughness\u003c\/li\u003e\n  \u003cli\u003eLightweight fit reduces pressure during long wear\u003c\/li\u003e\n  \u003cli\u003eImpact-resistant design suitable for outdoor recreation\u003c\/li\u003e\n  \u003cli\u003eUV and heat resistant material maintains frame integrity\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat lens color should I choose for my activities?\u003c\/h3\u003e\n\n\u003cp\u003eLens color influences contrast and suitability for different lighting. Smoke lenses deliver natural color balance in bright sun, brown increases depth perception for mixed light, copper is best for lower light or overcast days, and green offers versatility across sunny to overcast conditions.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eSmoke: natural color reproduction for bright conditions\u003c\/li\u003e\n  \u003cli\u003eBrown: enhanced contrast in varied light\u003c\/li\u003e\n  \u003cli\u003eCopper: boosts visibility in moderate-to-low light\u003c\/li\u003e\n  \u003cli\u003eGreen: all-around performance for changing skies\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I care for and store the FlatRock sunglasses?\u003c\/h3\u003e\n\n\u003cp\u003eKastKing includes a molded hard case and a Prym1 Camo microfiber pouch to protect lenses when not in use and to safely clean them. Gentle cleaning with fresh water and the microfiber cloth prevents scratches and preserves the PuriVex coating; avoid abrasive materials and do not dry with paper towels or expose lenses to saltwater while drying.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eUse included hard case for transport and storage\u003c\/li\u003e\n  \u003cli\u003eClean lenses with the microfiber pouch and warm water\u003c\/li\u003e\n  \u003cli\u003eAvoid paper towels, abrasive cloths, and saltwater drying\u003c\/li\u003e\n  \u003cli\u003eStore in pouch when carrying to prevent contact damage\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The KastKing FlatRock Polarized Sport Sunglasses are suited for outdoor enthusiasts who need reliable glare reduction and lightweight comfort — anglers, drivers, cyclists, and anyone who spends extended time outdoors. They’re a practical choice for buyers looking for durable frames, multiple lens color options for different lighting, and protective accessories to keep eyewear in good condition. If you want polarized performance, scratch-resistant lens treatment, and a flexible, low-weight frame for active days, the FlatRock series is designed to meet those needs.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do these sunglasses block UV rays?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. KastKing FlatRock lenses block 100% of UVA and UVB rays and meet or exceed U.S. ANSI protection standards.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I wear them for fishing and water sports?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. Polarized lenses reduce water glare and the PuriVex coating resists dirt and water, making them suitable for fishing and boating.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"KastKing","offers":[{"title":"Default Title","offer_id":59356345434460,"sku":"B0FVMFS2YP","price":49.44,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1059\/5604\/9244\/files\/kastking-flatrock-front-view_28e01e3c-8f48-4ec2-ab0c-a542ed514056.jpg?v=1791158036","url":"https:\/\/sportium.co.uk\/products\/kastking-polarized-sport-sunglasses-for-men-women-smoke-lenses-tac-polarized-uv400-protection","provider":"Sportium Sports And Outdoors","version":"1.0","type":"link"}