{"product_id":"bold-zippy-photochromic-sunglasses-mtb-ski-lifestyle-eyewear","title":"BOLD Zippy Photochromic Sunglasses – MTB, Ski \u0026 Lifestyle Eyewear","description":"\u003cp data-start=\"153\" data-end=\"239\"\u003e\u003cstrong data-start=\"153\" data-end=\"239\"\u003eBOLD Zippy Photochromic Sunglasses – Lightweight Speed with Light-Adaptive Clarity\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"241\" data-end=\"658\"\u003eZippy by name, zippy by nature. These featherweight, rimless performance sunglasses are made for speed — whether you're charging a descent on your mountain bike, racing a 10K, or skiing spring corn before lunch. The frameless shield design maximizes your field of view while minimizing weight and drag, and the photochromic lenses adjust to shifting light so you're never caught squinting or fumbling with lens swaps.\u003c\/p\u003e\n\u003cp data-start=\"660\" data-end=\"720\"\u003eMade for athletes who move fast and need gear that keeps up.\u003c\/p\u003e\n\u003cp data-start=\"722\" data-end=\"909\"\u003e\u003cstrong data-start=\"722\" data-end=\"750\"\u003ePhotochromic Performance\u003c\/strong\u003e\u003cbr data-start=\"750\" data-end=\"753\"\u003eZippy’s lenses transition from clear to tinted automatically, giving you just the right amount of protection whether you're in full sun or dense tree cover.\u003c\/p\u003e\n\u003cp data-start=\"722\" data-end=\"909\"\u003e\u003cstrong\u003eUV Protection: \u003c\/strong\u003eFully UV Protected\u003c\/p\u003e\n\u003cp data-start=\"911\" data-end=\"931\"\u003e\u003cstrong data-start=\"911\" data-end=\"929\"\u003eColor Options:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"932\" data-end=\"975\"\u003e\n\u003cli data-start=\"932\" data-end=\"941\"\u003e\n\u003cp data-start=\"934\" data-end=\"941\"\u003eBlack\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"942\" data-end=\"950\"\u003e\n\u003cp data-start=\"944\" data-end=\"950\"\u003ePink\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"951\" data-end=\"966\"\u003e\n\u003cp data-start=\"953\" data-end=\"966\"\u003eBlue\/Yellow\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"967\" data-end=\"975\"\u003e\n\u003cp data-start=\"969\" data-end=\"975\"\u003eBlue\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"977\" data-end=\"1091\"\u003e\u003cstrong data-start=\"977\" data-end=\"990\"\u003eIncludes:\u003c\/strong\u003e Custom box, hard case, lens cloth, and pouch — everything you need to stay light and fast on the go.\u003c\/p\u003e\n\u003cp\u003eBrowse the full \u003ca href=\"\/collections\/sunglasses\"\u003eBOLD sunglasses collection\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eAlso check out: \u003ca href=\"\/products\/flash-photochromic-sunglasses\"\u003eFlash Photochromic Sunglasses\u003c\/a\u003e — another top pick from the BOLD photochromic lineup.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eRead our guide: \u003ca href=\"\/blogs\/from-the-slopes\/best-photochromic-sunglasses-for-mountain-biking-2026\"\u003eBest Photochromic Sunglasses for Mountain Biking\u003c\/a\u003e to see how the Zippy compares for trail riding.\u003c\/p\u003e\n\u003cp\u003eWhether you're running a 10K, riding singletrack, or skiing corn snow, Zippy keeps pace.\u003c\/p\u003e\n\u003c!--BOLD-SPEC-START--\u003e\n\u003ch3 style=\"margin:30px 0 12px;font-size:17px;\"\u003eTechnical specifications\u003c\/h3\u003e\u003ctable style=\"border-collapse:collapse;width:100%;max-width:760px;margin:0 0 22px;font-size:15px;line-height:1.5;border:1px solid #d9d9d9\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:14px 16px;vertical-align:top;border:1px solid #d9d9d9;width:38%\"\u003eLens technology\u003c\/td\u003e\n\u003ctd style=\"padding:14px 16px;vertical-align:top;border:1px solid #d9d9d9\"\u003ePhotochromic, clear in low light and tinted in sun\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:14px 16px;vertical-align:top;border:1px solid #d9d9d9;width:38%\"\u003ePolarization\u003c\/td\u003e\n\u003ctd style=\"padding:14px 16px;vertical-align:top;border:1px solid #d9d9d9\"\u003eNon-polarized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:14px 16px;vertical-align:top;border:1px solid #d9d9d9;width:38%\"\u003eFit\u003c\/td\u003e\n\u003ctd style=\"padding:14px 16px;vertical-align:top;border:1px solid #d9d9d9\"\u003eStandard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:14px 16px;vertical-align:top;border:1px solid #d9d9d9;width:38%\"\u003eFrame width\u003c\/td\u003e\n\u003ctd style=\"padding:14px 16px;vertical-align:top;border:1px solid #d9d9d9\"\u003e5.47 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:14px 16px;vertical-align:top;border:1px solid #d9d9d9;width:38%\"\u003eLens width\u003c\/td\u003e\n\u003ctd style=\"padding:14px 16px;vertical-align:top;border:1px solid #d9d9d9\"\u003e5.39 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:14px 16px;vertical-align:top;border:1px solid #d9d9d9;width:38%\"\u003eBridge width\u003c\/td\u003e\n\u003ctd style=\"padding:14px 16px;vertical-align:top;border:1px solid #d9d9d9\"\u003eOne-piece shield\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:14px 16px;vertical-align:top;border:1px solid #d9d9d9;width:38%\"\u003eTemple length\u003c\/td\u003e\n\u003ctd style=\"padding:14px 16px;vertical-align:top;border:1px solid #d9d9d9\"\u003e4.92 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:14px 16px;vertical-align:top;border:1px solid #d9d9d9;width:38%\"\u003eFrame material\u003c\/td\u003e\n\u003ctd style=\"padding:14px 16px;vertical-align:top;border:1px solid #d9d9d9\"\u003eTR90\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:14px 16px;vertical-align:top;border:1px solid #d9d9d9;width:38%\"\u003eLens material\u003c\/td\u003e\n\u003ctd style=\"padding:14px 16px;vertical-align:top;border:1px solid #d9d9d9\"\u003ePolycarbonate, 1.8 mm thick\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:14px 16px;vertical-align:top;border:1px solid #d9d9d9;width:38%\"\u003ePrescription insert\u003c\/td\u003e\n\u003ctd style=\"padding:14px 16px;vertical-align:top;border:1px solid #d9d9d9\"\u003eNot available on this model\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3 style=\"margin:30px 0 12px;font-size:17px;\"\u003eUV protection and certification\u003c\/h3\u003e\u003ctable style=\"border-collapse:collapse;width:100%;max-width:760px;margin:0 0 22px;font-size:15px;line-height:1.5;border:1px solid #d9d9d9\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:14px 16px;vertical-align:top;border:1px solid #d9d9d9;width:38%\"\u003eUV protection\u003c\/td\u003e\n\u003ctd style=\"padding:14px 16px;vertical-align:top;border:1px solid #d9d9d9\"\u003eUV400\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:14px 16px;vertical-align:top;border:1px solid #d9d9d9;width:38%\"\u003eMeasured UV transmission\u003c\/td\u003e\n\u003ctd style=\"padding:14px 16px;vertical-align:top;border:1px solid #d9d9d9\"\u003e0.00% transmission measured across 280 to 400 nm (lab report, PC lens)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:14px 16px;vertical-align:top;border:1px solid #d9d9d9;width:38%\"\u003eCertified to\u003c\/td\u003e\n\u003ctd style=\"padding:14px 16px;vertical-align:top;border:1px solid #d9d9d9\"\u003eUV400\u003cbr\u003eANSI Z80.3:2018\u003cbr\u003eISO 12312-1:2022\u003cbr\u003eAS\/NZS 1067.1:2016\u003cbr\u003eFDA 21 CFR 801.410\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:14px 16px;vertical-align:top;border:1px solid #d9d9d9;width:38%\"\u003eImpact resistance\u003c\/td\u003e\n\u003ctd style=\"padding:14px 16px;vertical-align:top;border:1px solid #d9d9d9\"\u003eFDA 21 CFR 801.410 impact resistant, drop ball tested. Certificate 3017185693\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:14px 16px;vertical-align:top;border:1px solid #d9d9d9;width:38%\"\u003eDriving\u003c\/td\u003e\n\u003ctd style=\"padding:14px 16px;vertical-align:top;border:1px solid #d9d9d9\"\u003eSuitable for daytime driving. Not suitable for driving at night or in twilight, because a category 2 lens is too dark for low light behind the wheel.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch4 style=\"margin:22px 0 10px;font-size:15px;\"\u003eWhat UV400 actually means\u003c\/h4\u003e\u003cp style=\"margin:0 0 14px;font-size:15px;line-height:1.65;max-width:760px\"\u003eUV400 means the lens blocks 100% of ultraviolet light up to 400 nanometres. That covers the whole UV range that reaches the ground, both UVA and UVB. Independent lab testing measured 0.00% transmission across it.\u003c\/p\u003e\u003cp style=\"margin:0 0 14px;font-size:15px;line-height:1.65;max-width:760px\"\u003e\u003cstrong\u003eWhy UVB matters.\u003c\/strong\u003e UVB is the shorter, higher energy wavelength. Your cornea absorbs almost all of it, which is why the damage shows up fast. A day on snow without protection can give you photokeratitis, which is sunburn of the cornea. It feels like grit in your eyes and usually arrives six to twelve hours after exposure, often in the middle of the night. Long term, UVB is associated with pterygium, a fleshy growth across the white of the eye that skiers and surfers get, and with skin cancer on the thin skin of the eyelids.\u003c\/p\u003e\u003cp style=\"margin:0 0 14px;font-size:15px;line-height:1.65;max-width:760px\"\u003e\u003cstrong\u003eWhy UVA matters.\u003c\/strong\u003e UVA is the longer wavelength and it does not stop at the cornea. It passes through to the lens inside your eye and on to the retina. You feel nothing at the time, which is the problem. The damage accumulates over decades and is linked to cataracts and to age related macular degeneration. UVA is also present all day, all year, and it passes through cloud, so overcast days are not safe days.\u003c\/p\u003e\u003cp style=\"margin:0 0 14px;font-size:15px;line-height:1.65;max-width:760px\"\u003e\u003cstrong\u003eWhy it matters more on snow and at altitude.\u003c\/strong\u003e Fresh snow reflects up to 80% of UV straight back at your face, so you take it from above and below. UV intensity also climbs roughly 10% for every 1,000 feet you gain. A bluebird day at 10,000 feet on snow is one of the harshest UV environments most people ever stand in.\u003c\/p\u003e\u003cp style=\"margin:0 0 14px;font-size:15px;line-height:1.65;max-width:760px\"\u003e\u003cstrong\u003eOne more thing worth knowing.\u003c\/strong\u003e A dark lens with no UV protection is worse for your eyes than no sunglasses at all. The tint makes your pupils open wider, so more UV gets in. That is why the lab number matters and the tint does not tell you anything on its own.\u003c\/p\u003e\u003ch4 style=\"margin:22px 0 10px;font-size:15px;\"\u003eWhat these standards mean\u003c\/h4\u003e\u003cp style=\"margin:0 0 14px;font-size:15px;line-height:1.65;max-width:760px\"\u003e\u003cstrong\u003eANSI Z80.3:2018.\u003c\/strong\u003e The United States standard for non prescription sunglasses. It checks UV blocking, that colours still look natural through the lens, and that you can correctly recognise red, amber and green traffic signals.\u003c\/p\u003e\u003cp style=\"margin:0 0 14px;font-size:15px;line-height:1.65;max-width:760px\"\u003e\u003cstrong\u003eISO 12312-1:2022.\u003c\/strong\u003e The international standard for sunglass filters. It sets the filter category, verifies UV performance, and confirms whether the lens is safe for road use.\u003c\/p\u003e\u003cp style=\"margin:0 0 14px;font-size:15px;line-height:1.65;max-width:760px\"\u003e\u003cstrong\u003eAS\/NZS 1067.1:2016.\u003c\/strong\u003e The Australian and New Zealand standard, widely regarded as among the strictest in the world for sun protection. It is the one that measures UV blocking all the way out to 400 nanometres, which is where the UV400 claim comes from.\u003c\/p\u003e\u003cp style=\"margin:0 0 14px;font-size:15px;line-height:1.65;max-width:760px\"\u003e\u003cstrong\u003eFDA 21 CFR 801.410.\u003c\/strong\u003e The United States Food and Drug Administration requirement for impact resistant eyewear. Every lens is drop ball tested. Impact resistant does not mean unbreakable, but it means the lens is built to resist shattering rather than breaking into fragments near your eyes.\u003c\/p\u003e\n\u003c!--BOLD-SPEC-END--\u003e","brand":"boldouterwear","offers":[{"title":"Black","offer_id":67154902024433,"sku":"BLD9115","price":89.99,"currency_code":"USD","in_stock":true},{"title":"Pink","offer_id":67154902057201,"sku":"BLD9116","price":89.99,"currency_code":"USD","in_stock":true},{"title":"Blue\/Yellow","offer_id":67154902089969,"sku":"BLD9117","price":89.99,"currency_code":"USD","in_stock":true},{"title":"Blue","offer_id":67154902122737,"sku":"BLD9118","price":89.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/3118\/2065\/files\/KC07-15APH01_2.jpg?v=1791716105","url":"https:\/\/alberto74.com\/products\/bold-zippy-photochromic-sunglasses-mtb-ski-lifestyle-eyewear","provider":"ALBERTO","version":"1.0","type":"link"}