{"product_id":"calvin-day","title":"Calvin (Day)","description":"\u003cp\u003e\u003cstrong\u003eCalvin (Day)\u003c\/strong\u003e is an iconic design with a modern ombre edge — thick frames for an easy fit and lasting durability, with barrel hinges and a sleek nose bridge that refine the look — reimagined for daytime blue light filtering. Clear or lightly tinted lenses filter the high-energy blue wavelengths from screens and LED lighting while preserving natural color perception.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModern ombre edge:\u003c\/strong\u003e Thick, durable frame with barrel hinges and a sleek nose bridge.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDaytime blue light filtering:\u003c\/strong\u003e Reduces disruptive artificial blue light while maintaining true color — ideal for work, travel, and screen time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupports circadian rhythm:\u003c\/strong\u003e Keeps daytime light cues intact so your body's timing and energy systems stay aligned.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits your routine:\u003c\/strong\u003e Available in Non-Prescription, Readers, and Prescription options.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is the Day version — meant to be worn during daylight hours to reconnect the human body with the signals of life. Our Night version offers deep amber\/red lenses for evening protection. Choose Calvin (Day) to build a more regenerative indoors.\u003c\/p\u003e","brand":"Biospectral Systems","offers":[{"title":"Non-Prescription","offer_id":42836390051922,"sku":"CALVIN-DAY-NP","price":159.99,"currency_code":"USD","in_stock":true},{"title":"Readers","offer_id":42836390084690,"sku":"CALVIN-DAY-R","price":219.99,"currency_code":"USD","in_stock":true},{"title":"Prescription","offer_id":42836390117458,"sku":"CALVIN-DAY-P","price":269.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/4767\/0866\/files\/FORMAT_Calvin_day_1.png?v=1792641761","url":"https:\/\/themoderncart-store.myshopify.com\/products\/calvin-day","provider":"The Modern Cart","version":"1.0","type":"link"}