{"product_id":"costa-mainsail-xl","title":"Costa Del Mar Mainsail XL – Large Fit Lifestyle Sunglasses","description":"\u003cp\u003e \u003c\/p\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto [content-visibility:auto] supports-[content-visibility:auto]:[contain-intrinsic-size:auto_100lvh] R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-69cfb2f6-0c0c-8325-8905-45cc2015ce75-4\" data-testid=\"conversation-turn-974\" data-scroll-anchor=\"false\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"6657c503-2488-4df7-b415-d8c417f575d2\" dir=\"auto\" data-message-model-slug=\"gpt-5-3\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-turn-start-message=\"true\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word light markdown-new-styling\"\u003e\n\u003cp data-start=\"139\" data-end=\"487\"\u003eThe Costa Mainsail XL Polarized Sunglasses are built for anglers who need extra-large fit, extended coverage, and dependable glare reduction for long days on the water. Designed for fishing, boating, and coastal use, the Mainsail XL delivers the same proven performance as the Mainsail with a roomier, more comfortable fit for larger face profiles.\u003c\/p\u003e\n\u003cp data-start=\"489\" data-end=\"869\"\u003eEquipped with Costa’s premium polarized lenses, the Mainsail XL cuts harsh surface glare while improving clarity and contrast—helping anglers better read water conditions, track bait, and stay focused in bright sun. Whether you're fishing offshore, working inshore structure, or spending the day on open water, the lenses provide reliable visual performance where it matters most.\u003c\/p\u003e\n\u003cp data-start=\"871\" data-end=\"1246\"\u003eThe XL frame offers increased width and coverage without adding unnecessary bulk or pressure, making it ideal for all-day wear. Built from lightweight, durable bio-resin, the frame is designed to handle saltwater environments while maintaining comfort. Hydrolite® nose pads and temple tips enhance grip, keeping the sunglasses secure in heat, humidity, and active conditions.\u003c\/p\u003e\n\u003cp data-start=\"1248\" data-end=\"1408\"\u003eDesigned for anglers who need more room without sacrificing performance, the Mainsail XL delivers comfort, stability, and clarity for serious time on the water.\u003c\/p\u003e\n\u003chr data-start=\"1410\" data-end=\"1413\"\u003e\n\u003ch3 data-section-id=\"1iz91iu\" data-start=\"1415\" data-end=\"1431\"\u003eKey Features\u003c\/h3\u003e\n\u003cp data-start=\"1433\" data-end=\"1814\"\u003e• Extra-large fit sunglasses for extended coverage and comfort\u003cbr data-start=\"1495\" data-end=\"1498\"\u003e• Premium Costa polarized lenses for glare reduction and clarity\u003cbr data-start=\"1562\" data-end=\"1565\"\u003e• Lightweight, durable bio-resin frame\u003cbr data-start=\"1603\" data-end=\"1606\"\u003e• Hydrolite® nose and temple pads for improved grip\u003cbr data-start=\"1657\" data-end=\"1660\"\u003e• Designed specifically for larger face profiles\u003cbr data-start=\"1708\" data-end=\"1711\"\u003e• Built for bright, reflective water conditions\u003cbr data-start=\"1758\" data-end=\"1761\"\u003e• Comfortable for all-day wear on and off the water\u003c\/p\u003e\n\u003chr data-start=\"1816\" data-end=\"1819\"\u003e\n\u003ch3 data-section-id=\"3zmk2l\" data-start=\"1821\" data-end=\"1833\"\u003eBest For\u003c\/h3\u003e\n\u003cp data-start=\"1835\" data-end=\"1996\"\u003e• Offshore Fishing\u003cbr data-start=\"1853\" data-end=\"1856\"\u003e• Inshore Fishing\u003cbr data-start=\"1873\" data-end=\"1876\"\u003e• Flats Fishing\u003cbr data-start=\"1891\" data-end=\"1894\"\u003e• Boating\u003cbr data-start=\"1903\" data-end=\"1906\"\u003e• Bright Sun Conditions\u003cbr data-start=\"1929\" data-end=\"1932\"\u003e• Open Water Fishing\u003cbr data-start=\"1952\" data-end=\"1955\"\u003e• Coastal Use\u003cbr data-start=\"1968\" data-end=\"1971\"\u003e• Everyday Outdoor Wear\u003c\/p\u003e\n\u003chr data-start=\"1998\" data-end=\"2001\"\u003e\n\u003ch3 data-section-id=\"1getl0g\" data-start=\"2003\" data-end=\"2029\"\u003ePremier Tackle Insight\u003c\/h3\u003e\n\u003cp data-start=\"2031\" data-end=\"2249\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eWe carry what works—and the Mainsail XL is perfect for anglers who need a true larger fit without compromising performance. Comfortable, secure, and built for the water, it’s a reliable choice for long days in the sun.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"z-0 flex min-h-[46px] justify-start\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\n\u003cdiv class=\"text-center\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e","brand":"Costa Del Mar","offers":[{"title":"Matte Black \/ Blue Mirror 580G","offer_id":48067698327809,"sku":"91310359","price":285.0,"currency_code":"USD","in_stock":true},{"title":"Matte Grey Smoke \/ Green Mirror 580G","offer_id":48067701670145,"sku":"91310559","price":285.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0713\/3206\/9633\/files\/06S9131__913103__P21__shad__qt.avif?v=1773528405","url":"https:\/\/premiertackle.com\/products\/costa-mainsail-xl","provider":"Premier Tackle","version":"1.0","type":"link"}