{"product_id":"sleepaxa-zephyr-jet-black-fl-41-migraine-glasses-hexagonal-with-a-deep-50mm-lens","title":"Sleepaxa Zephyr Jet Black FL-41 Migraine Glasses – Hexagonal with a Deep 50mm Lens","description":"\u003cdiv class=\"sxd\"\u003e\n\u003cdiv class=\"sxd-sec\"\u003e\n\u003cdiv class=\"sxd-k\"\u003eThe Featherlight Series · FL-41\u003c\/div\u003e\n\u003ch2\u003eZephyr Jet Black\u003c\/h2\u003e\n\u003cp class=\"sxd-lede\"\u003eSix sides and fifty millimeters of lens, the deepest field we cut.\u003c\/p\u003e\n\u003cp\u003eThe number that defines Zephyr is 50 mm of lens height. Nothing else in the range goes that deep, and depth is the variable that decides how much light arrives from underneath the rim while you look at a screen, a page or a dashboard. The hexagonal outline is what makes that depth wearable: flat top, angled lower corners, so the extra glass reads as geometry rather than bulk. On a 140 mm front with a 53 mm eye and an 18 mm bridge, the fit stays medium while the coverage does not.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sxd-sec\"\u003e\n\u003cdiv class=\"sxd-k\"\u003eTwo tints, two jobs\u003c\/div\u003e\n\u003ch2\u003eMaximum field, two tint depths\u003c\/h2\u003e\n\u003cdiv class=\"sxd-grid\"\u003e\n\u003cdiv class=\"sxd-card\"\u003e\n\u003cb\u003eFL-41 Light\u003c\/b\u003e\u003cem\u003eAll-day indoor wear\u003c\/em\u003e\u003cspan\u003eLighter rose, same engineering. The notch sits where FL-41 Dark puts it; the difference is how much total light the lens lets through. Made for indoor wear across a full day. UV400, and the complete spectrophotometer report is being finalized for publication here.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sxd-card\"\u003e\n\u003cb\u003eFL-41 Dark\u003c\/b\u003e\u003cem\u003eThe brightest environments\u003c\/em\u003e\u003cspan\u003eNumbers first: 7.9% at 420 nm, 13.8% at 450 nm, 12.6% at 520 nm, 44.2% at 570 nm, 100% above 670 nm. That shape is a notch, not a wall. Luminous transmittance 41.1%, Filter Category 2, 100% UV400.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"sxd-note\"\u003eAll figures are single-lens spectrophotometer measurements from our own laboratory reports for this lens, tested to EN ISO 12312-1, ANSI Z80.3 and AS\/NZS 1067.1. Individual response varies.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sxd-sec\"\u003e\n\u003cdiv class=\"sxd-k\"\u003eFit\u003c\/div\u003e\n\u003ch3\u003eWill the Zephyr fit you?\u003c\/h3\u003e\n\u003cp\u003eZephyr is medium at 140 mm across the front, so temple width is not the constraint here; lens depth is. At 50 mm this is the deepest lens we make, and on a short face or high cheekbones the lower rim will make contact when you smile. Measure from your brow to the top of your cheekbone before choosing it. The 18 mm bridge is comfortable for a 53 mm eye, and temples run a standard 145 mm.\u003c\/p\u003e\n\u003ctable class=\"sxd-tbl\"\u003e\n\u003ctr\u003e\n\u003cth\u003eFrame size\u003c\/th\u003e\n\u003ctd\u003e53-18-145\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFront width\u003c\/th\u003e\n\u003ctd\u003e140mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLens height\u003c\/th\u003e\n\u003ctd\u003e50mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFit\u003c\/th\u003e\n\u003ctd\u003eMedium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShape\u003c\/th\u003e\n\u003ctd\u003eHexagonal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCollection\u003c\/th\u003e\n\u003ctd\u003eThe Featherlight Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLens options\u003c\/th\u003e\n\u003ctd\u003eFL-41 Light or Dark · zero power or prescription\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUV protection\u003c\/th\u003e\n\u003ctd\u003e100% UV400, both tints\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sxd-sec\"\u003e\n\u003cdiv class=\"sxd-k\"\u003eIn the box\u003c\/div\u003e\n\u003cul class=\"sxd-list\"\u003e\n\u003cli\u003eZephyr Jet Black frame in your chosen FL-41 tint\u003c\/li\u003e\n\u003cli\u003eHard case and microfiber cleaning cloth\u003c\/li\u003e\n\u003cli\u003eSpectrophotometer report reference for your lens\u003c\/li\u003e\n\u003cli\u003eOne-year frame warranty, six-month lens warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Sleepaxa","offers":[{"title":"Zero Power \/ FL-41 Light Tint - Mild Photophobia","offer_id":48028494954645,"sku":null,"price":149.0,"currency_code":"USD","in_stock":true},{"title":"Zero Power \/ FL-41 Dark Tint - Severe Photophobia","offer_id":48028494987413,"sku":null,"price":155.0,"currency_code":"USD","in_stock":true},{"title":"Prescription Lens \/ FL-41 Light Tint - Mild Photophobia","offer_id":48028495020181,"sku":null,"price":199.0,"currency_code":"USD","in_stock":true},{"title":"Prescription Lens \/ FL-41 Dark Tint - Severe Photophobia","offer_id":48028495052949,"sku":null,"price":205.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/5475\/4453\/files\/zephyr-migraine-front-2048_f9e1cfa6-3767-4d9f-b287-7bb3bbfe9cde.png?v=1789805900","url":"https:\/\/www.sleepaxa.com\/products\/sleepaxa-zephyr-jet-black-fl-41-migraine-glasses-hexagonal-with-a-deep-50mm-lens","provider":"Sleepaxa","version":"1.0","type":"link"}