{"title":"Fortis","description":"\u003cdiv class=\"th-vendor-hero th-vendor-hero--fortis\"\u003e\n  \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0926\/3667\/6438\/files\/fortis-eyewear-brand-story-banner.jpg?v=1781087326\" alt=\"Fortis Eyewear polarized fishing sunglasses designed to help anglers read water more effectively\" class=\"th-vendor-hero__image\"\u003e\n  \u003cdiv class=\"th-vendor-hero__content\"\u003e\n    \u003ch2 class=\"th-vendor-hero__title\"\u003e\n      \u003cspan class=\"th-vendor-hero__accent\"\u003eMost people see the surface.\u003c\/span\u003e\u003cbr\u003e\n      Fortis helps you see beneath it.\n    \u003c\/h2\u003e\n\u003cp class=\"th-vendor-hero__text th-vendor-hero__desktop\"\u003e\n  Polarized sunglasses designed for anglers who want to read water, spot details and see more than just glare.\n\u003c\/p\u003e\n\u003cp class=\"th-vendor-hero__mobile-text\"\u003e\n  See beneath the surface.\n\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cstyle\u003e\n  .th-vendor-hero {\n    position: relative;\n    overflow: hidden;\n    margin: 24px 0 28px;\n    background: transparent;\n  }\n  .th-vendor-hero__image {\n    display: block;\n    width: 100%;\n    height: auto;\n  }\n  .th-vendor-hero__content {\n    position: absolute;\n    top: 50%;\n    left: 6%;\n    transform: translateY(-50%);\n    max-width: 440px;\n    z-index: 2;\n    background: rgba(0, 0, 0, 0.42);\n    padding: 26px 28px;\n    border-radius: 4px;\n  }\n  .th-vendor-hero__title,\n  .th-vendor-hero__title * {\n    margin: 0 0 28px !important;\n    color: #ffffff !important;\n    opacity: 1 !important;\n    font-size: clamp(28px, 2.8vw, 40px);\n    line-height: 1.12;\n    font-weight: 700;\n    text-shadow: 0 3px 12px rgba(0,0,0,.95);\n  }\n  .th-vendor-hero__accent {\n    color: #d8a031 !important;\n  }\n  .th-vendor-hero__text,\n  .th-vendor-hero__text * {\n    margin: 0 !important;\n    color: #ffffff !important;\n    opacity: 1 !important;\n    font-size: 15px;\n    line-height: 1.75;\n    text-shadow: 0 2px 10px rgba(0,0,0,.9);\n  }\n  .th-vendor-hero__mobile-text {\n    display: none;\n  }\n  .th-vendor-image {\n    display: block;\n    width: 100%;\n    height: auto;\n    margin: 20px 0 24px;\n    border-radius: 4px;\n  }\n  @media screen and (max-width: 740px) {\n    .th-vendor-hero {\n      margin: 18px 0 24px;\n    }\n    .th-vendor-hero__content {\n      top: 14px;\n      left: 14px;\n      right: auto;\n      transform: none;\n      max-width: 62%;\n      padding: 12px 14px;\n      background: rgba(0, 0, 0, 0.54);\n    }\n    .th-vendor-hero__desktop,\n    .th-vendor-hero__text,\n    .th-vendor-hero__mobile-text {\n      display: none !important;\n    }\n    .th-vendor-hero__title,\n    .th-vendor-hero__title * {\n      margin: 0 !important;\n      font-size: clamp(20px, 6vw, 28px) !important;\n      line-height: 1.12 !important;\n    }\n  }\n\u003c\/style\u003e\n\u003cdetails class=\"th-readmore\"\u003e\n  \u003csummary\u003eLook beneath the surface ↓\u003c\/summary\u003e\n  \u003ciframe title=\"vimeo-player\" src=\"https:\/\/player.vimeo.com\/video\/209553412?h=92ca21e9ab\" width=\"100%\" height=\"650\" frameborder=\"0\" referrerpolicy=\"strict-origin-when-cross-origin\" allow=\"autoplay; fullscreen; picture-in-picture; clipboard-write; encrypted-media; web-share\" allowfullscreen\u003e\u003c\/iframe\u003e\n  \u003ch2\u003eFortis Eyewear – sunglasses for anglers who read water\u003c\/h2\u003e\n  \u003cp\u003e\u003cstrong\u003eFortis Eyewear\u003c\/strong\u003e is a British brand focused on polarized fishing sunglasses, technical clothing and equipment built for long days on the water. Its philosophy is simple: \u003cstrong\u003esee deeper, see further and stay comfortable in demanding conditions.\u003c\/strong\u003e\u003c\/p\u003e\n  \u003cp\u003eFishing is not just about looking at the water. It is about reading currents, spotting shadows, fish movement, weed beds, rocks and changes in the riverbed. This is where Fortis excels – creating optics that reduce glare and help anglers see beneath the surface.\u003c\/p\u003e\n  \u003cdiv class=\"ty-product-highlights\"\u003e\n    \u003ch3\u003eWhy Fortis?\u003c\/h3\u003e\n    \u003cul\u003e\n      \u003cli\u003epolarized lenses help reduce glare from the water surface\u003c\/li\u003e\n      \u003cli\u003elens colours are designed for specific lighting conditions\u003c\/li\u003e\n      \u003cli\u003eAmber, Brown, Green, Grey and Switch cover a wide range of fishing situations\u003c\/li\u003e\n      \u003cli\u003eSwitch, XBlok and Triple X technologies improve clarity and comfort\u003c\/li\u003e\n      \u003cli\u003epractical optics for fly anglers, carp anglers and anyone spending long hours watching the water\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n  \u003ch2\u003eHow do Fortis polarized sunglasses work?\u003c\/h2\u003e\n  \u003cp\u003eThe biggest challenge when looking at water is \u003cstrong\u003ereflected light\u003c\/strong\u003e. As sunlight reflects off the surface, glare hides what is happening beneath and causes eye fatigue. Fortis polarized lenses use a special filter designed to reduce this type of reflection.\u003c\/p\u003e\n  \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0926\/3667\/6438\/files\/fortis-polarization-vs-glare.jpg?v=1781089421\" alt=\"Comparison between surface glare and a clearer underwater view through Fortis polarized fishing sunglasses\" class=\"th-vendor-image\"\u003e\n  \u003cp\u003eThe result is a cleaner image, less eye strain and a better ability to detect fish, weed beds, rocks, structure and movement below the surface. For anglers, this means better decisions on the water and improved awareness of what is happening beneath the glare.\u003c\/p\u003e\n  \u003ch2\u003eChoosing the right Fortis lens colour\u003c\/h2\u003e\n  \u003cp\u003eFortis does not believe in a single lens for every situation. Each lens colour is designed to perform best under specific lighting conditions.\u003c\/p\u003e\n  \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0926\/3667\/6438\/files\/fortis-lens-colour-comparison.jpg?v=1781089723\" alt=\"Comparison of Fortis Amber Brown Green Grey and Switch polarized lens colours for different fishing conditions\" class=\"th-vendor-image\"\u003e\n  \u003cul\u003e\n    \u003cli\u003e\u003cstrong\u003eAmber\u003c\/strong\u003e – ideal for low light, early mornings, evenings, cloudy days and shaded banks.\u003c\/li\u003e\n    \u003cli\u003e\u003cstrong\u003eBrown\u003c\/strong\u003e – a versatile all-round lens with enhanced contrast for everyday conditions.\u003c\/li\u003e\n    \u003cli\u003e\u003cstrong\u003eGreen\u003c\/strong\u003e – natural colour reproduction and long-term visual comfort.\u003c\/li\u003e\n    \u003cli\u003e\u003cstrong\u003eGrey\u003c\/strong\u003e – darker lens for bright sunlight and open water environments.\u003c\/li\u003e\n    \u003cli\u003e\u003cstrong\u003eSwitch\u003c\/strong\u003e – photochromic technology that adapts automatically to changing light conditions.\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003ch2\u003eFortis lens technologies\u003c\/h2\u003e\n  \u003cp\u003e\u003cstrong\u003eSwitch\u003c\/strong\u003e is a photochromic technology. The lens darkens in bright conditions and becomes lighter when light levels drop. It is ideal for anglers who spend the entire day outdoors or regularly move between shade and open water.\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eXBlok\u003c\/strong\u003e is a mirrored lens coating designed for challenging lighting conditions. It helps further reduce glare and optimises visual performance depending on the lens colour.\u003c\/p\u003e\n  \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0926\/3667\/6438\/files\/fortis-triple-x-lens-technology.jpg?v=1781090335\" alt=\"Fortis Triple X lens technology showing the multi-layer construction used to improve clarity, protection and glare reduction\" class=\"th-vendor-image\"\u003e\n  \u003ch3\u003eWhat is Triple X technology?\u003c\/h3\u003e\n  \u003cp\u003e\u003cstrong\u003eTriple X\u003c\/strong\u003e is Fortis' premium lens technology focused on optical clarity, lightweight performance and all-day comfort. The illustration above shows the multi-layer lens construction where several specialised layers work together to protect vision, reduce glare and maintain a clearer view of the water.\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003e\u003cstrong\u003ePolarizing layers\u003c\/strong\u003e help reduce glare from the water surface.\u003c\/li\u003e\n    \u003cli\u003e\u003cstrong\u003eProtective layers\u003c\/strong\u003e improve durability for everyday use.\u003c\/li\u003e\n    \u003cli\u003e\u003cstrong\u003eHydrophobic coating\u003c\/strong\u003e helps repel water and dirt.\u003c\/li\u003e\n    \u003cli\u003e\u003cstrong\u003eXBlok layer\u003c\/strong\u003e provides additional control over harsh reflections.\u003c\/li\u003e\n    \u003cli\u003e\u003cstrong\u003eSlim optical construction\u003c\/strong\u003e supports a clearer and more natural image.\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003eFor anglers, this translates into reduced glare, easier water reading and less eye fatigue during long days on rivers, lakes and reservoirs.\u003c\/p\u003e\n  \u003ch2\u003eWho are Fortis sunglasses for?\u003c\/h2\u003e\n  \u003cp\u003eFortis makes the most sense for anglers who actively read water. Fly anglers benefit from improved visibility of currents, structure and fish movement, while stillwater anglers gain a clearer view of weed beds, drop-offs and underwater features that would otherwise be hidden by glare.\u003c\/p\u003e\n  \u003ch2\u003eWho might they not be for?\u003c\/h2\u003e\n  \u003cp\u003eIf you are simply looking for inexpensive fashion sunglasses, Fortis may not be the right choice. Their value lies in fishing-specific optics, polarization and purpose-built lens designs tailored to real conditions on the water.\u003c\/p\u003e\n  \u003ch2\u003eFortis at Thymallus\u003c\/h2\u003e\n  \u003cp\u003eAt Thymallus, we selected Fortis because these sunglasses solve a real problem for anglers. They are not just another accessory – they help you read water more effectively, reduce eye fatigue and make better decisions while fishing.\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eAmber for low light, Brown as the all-rounder, Green for natural vision, Grey for bright sunshine and Switch for constantly changing conditions.\u003c\/strong\u003e\u003c\/p\u003e\n  \u003cdiv class=\"th-alert th-alert--blue\"\u003e\n\u003cstrong\u003eNot sure which lens is right for you?\u003c\/strong\u003e\u003cbr\u003e\nAmber for low light, Brown for everyday versatility, Green for natural colour perception, Grey for bright sunny conditions and Switch for changing light throughout the day.\n\u003c\/div\u003e\n\u003c\/details\u003e","products":[{"product_id":"fortis-isolators-square-switch™-photochromic","title":"Fortis Isolators Square SWITCH™ Photochromic","description":"\u003ch2\u003eFortis Isolators Square SWITCH™ Photochromic\u003c\/h2\u003e\n\n\u003cp\u003eThe Fortis Isolators Square SWITCH™ Photochromic sunglasses are designed for anglers who need maximum visual performance in constantly changing light conditions. The advanced photochromic lenses automatically adjust their tint according to UV exposure, remaining lighter in shade and darkening in bright sunlight.\u003c\/p\u003e\n\n\u003cp\u003eThe square-frame Isolators feature removable side shields that block unwanted peripheral light, helping you maintain focus on the water surface and spot fish more effectively. Whether you're moving between shaded riverbanks, open lakes or bright summer conditions, the SWITCH™ lenses adapt without requiring a lens change.\u003c\/p\u003e\n\n\u003cdiv class=\"ty-product-highlights\"\u003e\n\u003cul\u003e\n\u003cli\u003eSWITCH™ photochromic lenses automatically adapt to changing light conditions\u003c\/li\u003e\n\u003cli\u003eRemovable side shields reduce distracting side light\u003c\/li\u003e\n\u003cli\u003eExcellent for fish spotting in rivers, lakes and stillwaters\u003c\/li\u003e\n\u003cli\u003eComfortable square-frame design for all-day wear\u003c\/li\u003e\n\u003cli\u003eImproved contrast and visibility across varying weather conditions\u003c\/li\u003e\n\u003cli\u003eHard protective case and microfiber cleaning cloth included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eOne Pair. All Conditions.\u003c\/h3\u003e\n\n\u003cp\u003eUnlike fixed-tint lenses, SWITCH™ technology continuously reacts to changing UV levels. This makes the Isolators an excellent choice for anglers fishing from dawn until dusk or frequently moving between shaded and open-water environments.\u003c\/p\u003e\n\n\u003ch3\u003eMaximum Control Over Side Light\u003c\/h3\u003e\n\n\u003cp\u003eThe removable side shields are engineered to eliminate peripheral light intrusion that can reduce contrast and create distracting reflections. By blocking unwanted light from the sides, the Isolators help improve concentration and fish-spotting performance.\u003c\/p\u003e\n\n\u003ch3\u003eIncluded in the Box\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eFortis Isolators Square SWITCH™ Photochromic sunglasses\u003c\/li\u003e\n\u003cli\u003eHard protective case\u003c\/li\u003e\n\u003cli\u003eMicrofiber cleaning cloth\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ciframe title=\"vimeo-player\" src=\"https:\/\/player.vimeo.com\/video\/209553412?h=92ca21e9ab\" width=\"640\" height=\"360\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Fortis","offers":[{"title":"Default Title","offer_id":54152723792214,"sku":null,"price":89.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0926\/3667\/6438\/files\/fortis-isolators-square-switch-photochromic.jpg?v=1781076257"},{"product_id":"fortis-isolators-round-switch™-photochromic","title":"Fortis Isolators Round SWITCH™ Photochromic","description":"\u003ch2\u003eFortis Isolators Round SWITCH™ Photochromic\u003c\/h2\u003e\n\u003cp\u003eThe Fortis Isolators Round SWITCH™ Photochromic sunglasses are designed for anglers who need reliable eyewear throughout the day, regardless of changing light conditions. Advanced SWITCH™ photochromic lenses automatically adjust their tint according to UV intensity, remaining lighter in the shade and darkening in bright sunlight.\u003c\/p\u003e\n\u003cp\u003eThe Isolators Round feature removable side shields that significantly reduce peripheral light intrusion. The result is improved contrast, reduced glare and easier detection of fish, underwater structure and movement beneath the surface.\u003c\/p\u003e\n\u003cdiv class=\"ty-product-highlights\"\u003e\n\u003cul\u003e\n\u003cli\u003eSWITCH™ photochromic lenses automatically adapt to changing light conditions\u003c\/li\u003e\n\u003cli\u003eRemovable side shields for maximum side-light reduction\u003c\/li\u003e\n\u003cli\u003eSuitable for both sunny and overcast days\u003c\/li\u003e\n\u003cli\u003eEnhanced contrast for spotting fish and reading water conditions\u003c\/li\u003e\n\u003cli\u003eComfortable round-frame design for all-day wear\u003c\/li\u003e\n\u003cli\u003eHard protective case and microfiber cleaning cloth included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003ch3\u003eOne Pair for All Light Conditions\u003c\/h3\u003e\n\u003cp\u003eSWITCH™ Photochromic technology is an excellent choice for anglers who move between open water, shaded riverbanks and changing weather throughout the day. The lenses automatically adjust their tint based on UV exposure, eliminating the need to switch eyewear as conditions change.\u003c\/p\u003e\n\u003ch3\u003eMaximum Control Over Side Light\u003c\/h3\u003e\n\u003cp\u003eThe removable side shields help eliminate distracting light entering from the sides. This reduces glare and improves your ability to detect fish movement, underwater obstacles and fine details beneath the surface.\u003c\/p\u003e\n\u003ch3\u003eClassic Isolators Round Design\u003c\/h3\u003e\n\u003cp\u003eThe Round version offers a more traditional frame shape while maintaining a wide field of view and excellent comfort. Combined with SWITCH™ photochromic lenses, it delivers a versatile solution for anglers who want outstanding visibility without compromise.\u003c\/p\u003e\n\u003ch3\u003eIncluded in the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFortis Isolators Round SWITCH™ Photochromic sunglasses\u003c\/li\u003e\n\u003cli\u003eHard protective case\u003c\/li\u003e\n\u003cli\u003eMicrofiber cleaning cloth\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ciframe title=\"vimeo-player\" src=\"https:\/\/player.vimeo.com\/video\/209553412?h=92ca21e9ab\" width=\"640\" height=\"360\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Fortis","offers":[{"title":"Default Title","offer_id":54153654894934,"sku":null,"price":89.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0926\/3667\/6438\/files\/fortis-isolators-round-switch-photochromic.jpg?v=1781074847"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0926\/3667\/6438\/collections\/fortis-eyewear-logo.png?v=1781084083","url":"https:\/\/www.thymallus.com\/en\/collections\/fortis.oembed","provider":"Thymallus Fly Fishing Shop","version":"1.0","type":"link"}