[{"id":277191688253,"handle":"cycling-running","title":"Cycling-Running","updated_at":"2026-06-18T14:33:52-07:00","body_html":"","published_at":"2023-08-20T21:12:09-07:00","sort_order":"best-selling","template_suffix":"","disjunctive":true,"rules":[{"column":"tag","relation":"equals","condition":"cycling"},{"column":"tag","relation":"equals","condition":"Running"},{"column":"title","relation":"contains","condition":"cycling"},{"column":"title","relation":"contains","condition":"running"},{"column":"title","relation":"contains","condition":"Thresher"},{"column":"title","relation":"contains","condition":"Kona"}],"published_scope":"global","image":{"created_at":"2023-08-20T21:12:08-07:00","alt":null,"width":669,"height":669,"src":"\/\/spitseyewear.com\/cdn\/shop\/collections\/Tizzy-square.webp?v=1692591128"}},{"id":298330718269,"handle":"kona-tt-bifocal-collection","updated_at":"2026-06-18T12:27:36-07:00","published_at":"2026-06-18T09:12:59-07:00","sort_order":"most-relevant","template_suffix":"","published_scope":"global","title":"Kona TT Bifocal Collection","body_html":"\u003ch2\u003eKona TT Bifocal Photochromic Safety Glasses\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eKona TT (Time Trial) Bifocal Collection\u003c\/strong\u003e is built for high-performance environments where light changes fast and precision matters. Featuring photochromic lenses that automatically transition from dark to clear, the Kona TT keeps your vision dialed in from start to finish — no lens swaps, no downtime.\u003c\/p\u003e\u003ch3\u003eWhy Photochromic?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLight-adaptive lenses\u003c\/strong\u003e that darken in bright sunlight and clear in shade or low light\u003c\/li\u003e\n\u003cli\u003ePerforms like transitions lenses — seamlessly adjusting as conditions change\u003c\/li\u003e\n\u003cli\u003ePerfect for time trials, motorsport, shooting, and any activity where lighting shifts fast\u003c\/li\u003e\n\u003cli\u003eIntegrated bifocal readers for precision tasks without removing your eyewear\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eANSI Z87.1+ rated impact protection\u003c\/li\u003e\n\u003cli\u003eUV400 protection — blocks 100% of UVA and UVB rays\u003c\/li\u003e\n\u003cli\u003eWraparound frame for full peripheral coverage and wind protection\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple bifocal magnifications (+1.50 to +3.00)\u003c\/li\u003e\n\u003cli\u003eLightweight, durable frames engineered for all-day performance wear\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWhether you call them transition glasses, light-adjusting lenses, or photochromic bifocals — the Kona TT delivers automatic clarity and certified protection, every time.\u003c\/p\u003e","image":{"created_at":"2026-06-18T09:12:58-07:00","alt":null,"width":1248,"height":832,"src":"\/\/spitseyewear.com\/cdn\/shop\/collections\/kona-tt-hero-banner_5eef6fc4-e4dc-476e-9e32-cbb936b72b6a.png?v=1781799179"}},{"id":34918858813,"handle":"mens-sunglasses","updated_at":"2026-06-18T12:21:51-07:00","published_at":"2018-04-05T17:54:18-07:00","sort_order":"best-selling","template_suffix":null,"published_scope":"global","title":"Men's Sunglasses","body_html":"","image":{"created_at":"2018-04-05T17:54:29-07:00","alt":"","width":1200,"height":803,"src":"\/\/spitseyewear.com\/cdn\/shop\/collections\/mens_sunglasses.jpg?v=1522976069"}},{"id":162565652541,"handle":"all","title":"Products","updated_at":"2026-06-18T14:33:52-07:00","body_html":null,"published_at":"2020-08-07T07:45:35-07:00","sort_order":"alpha-asc","template_suffix":null,"disjunctive":false,"rules":[{"column":"type","relation":"not_equals","condition":"mw_hidden_cart_fee"},{"column":"type","relation":"not_equals","condition":"Product Fee"},{"column":"type","relation":"not_equals","condition":"mw_product_option"},{"column":"type","relation":"not_equals","condition":"mw_motivator_product"},{"column":"type","relation":"not_equals","condition":"mw_product_option_cloned"}],"published_scope":"web"}]
Kona TT Photochromic Bifocal Cycling & Running Sunglasses
The Kona TT Bifocal is purpose-built for cyclists and triathletes who need reading magnification for bike computers, GPS watches, and heart rate monitors — without stopping to swap glasses. Photochromic lenses automatically adjust from clear to dark as light changes, so you're always in the right tint whether you're climbing in the shade or descending in full sun. Available in multiple frame colors.
Who Is This For?
Road cyclists, triathletes, and runners who are over 40 and need bifocal magnification to read cycling computers, GPS devices, or heart rate monitors while riding or running.
Key Features
Photochromic lenses — automatically adjusts from clear to dark as light changes
Bifocal magnification — available in +1.50, +2.00, +2.50
Lightweight sport frame with adjustable soft rubber ear locks
Hydrophilic rubber nose pads — grip improves when wet
What is a photochromic lens? Photochromic lenses automatically darken in UV light (sunlight) and lighten indoors or in low light. No need to swap lenses as conditions change.
Where is the bifocal reading zone positioned? The bifocal is positioned at the bottom of the lens, so your distance vision is unaffected while pedaling, and you look down slightly to read your computer or watch.
Are these good for triathlons? Yes — the Kona TT Bifocal is a popular choice for triathletes who need to read pace, power, and heart rate data on the bike and run legs.
What magnification strengths are available? +1.50, +2.00, and +2.50 in multiple frame colors.
Cleaning Spits Eyewear safety glasses is essential to keep them in good condition and maintain their effectiveness. First, rinse the glasses with cold or warm water to remove dust or dirt. Next, apply a small amount of dish soap on both sides of the lenses and rub them gently with your fingers. Rinse the glasses with water again and pat dry with a microfiber cloth. Avoid using hot water, abrasive cleaners, or tissues to clean safety glasses; they can damage the lenses and reduce their effectiveness. Repeat this process regularly to ensure clear vision and long-lasting safety.
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