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For care, wash inside out in cold water, tumble dry low, and do not bleach.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eGolden Ratio Design: Full front chest print features a detailed golden geometric spiral, intersecting circles, square forms, fine lines, and scattered star-like dots for a striking mathematical look.\u003c\/li\u003e\n\u003cli\u003eFabric And Comfort: This unisex classic crew neck, short-sleeve tee uses 100% cotton in solid colors. Heather colors use a cotton and polyester blend, while Athletic Heather is 90% cotton and 10% polyester.\u003c\/li\u003e\n\u003cli\u003eFit And Sizes: Designed in a unisex classic crew neck fit with short sleeves. Available in Small through 3X-Large; please refer to the size chart image to select the fit that works for you.\u003c\/li\u003e\n\u003cli\u003eGift Idea: A thoughtful gift for mathematicians, geometry fans, science students, teachers, engineers, and anyone who appreciates Fibonacci-inspired visual patterns and detailed line art.\u003c\/li\u003e\n\u003cli\u003eMade To Order Care: Each shirt is printed to order with the design placed on the full front chest. Wash inside out in cold water, tumble dry low, and do not bleach to help preserve the print.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PINEHART","offers":[{"title":"Red \/ S","offer_id":67705309954150,"sku":"PH-4370415457-TEE-RED-S","price":19.99,"currency_code":"USD","in_stock":true},{"title":"Red \/ M","offer_id":67705309986918,"sku":"PH-4370415457-TEE-RED-M","price":19.99,"currency_code":"USD","in_stock":true},{"title":"Red \/ L","offer_id":67705310019686,"sku":"PH-4370415457-TEE-RED-L","price":19.99,"currency_code":"USD","in_stock":true},{"title":"Red \/ XL","offer_id":67705310052454,"sku":"PH-4370415457-TEE-RED-XL","price":21.99,"currency_code":"USD","in_stock":true},{"title":"Red \/ 2XL","offer_id":67705310085222,"sku":"PH-4370415457-TEE-RED-2XL","price":21.99,"currency_code":"USD","in_stock":true},{"title":"Red \/ 3XL","offer_id":67705310117990,"sku":"PH-4370415457-TEE-RED-3XL","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ 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