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6 to 9.5.\u003c\/p\u003e\n\u003cp\u003eSize Large fits men's shoe sizes 8 to 12.5. \u003c\/p\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cdiv\u003eAbout 60% cotton, 35% nylon, 5% spandex\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e","brand":"3Blue1Brown","offers":[{"title":"M","offer_id":40064694517914,"sku":"Z.5.4.12-M","price":12.56,"currency_code":"USD","in_stock":true},{"title":"L","offer_id":40064694550682,"sku":"Z.5.4.13-L","price":12.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0571\/3195\/8426\/products\/fourier-socks-1.png?v=1623100581"},{"product_id":"short-3blue1brown-pi-plushie","title":"SHORT 3Blue1Brown Pi Plushie","description":"\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003e\u003cspan style=\"color: #0000ff;\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003eContrary to popular perception, math is filled with character.  Numbers 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charset=\"utf-8\"\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003eThis pack comes with two 5\" tall vinyl decals. One with white background one with a black background!\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDesign by Pete McPartlan\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Numberphile","offers":[{"title":"Default Title","offer_id":40064697827482,"sku":"D.1.2A.05","price":7.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0571\/3195\/8426\/products\/prime-4.jpg?v=1623100584"},{"product_id":"3blue1brown-vertical-alignment-shirt","title":"3Blue1Brown Vertical Alignment Shirt","description":"\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003e\u003cspan style=\"color: #0000ff;\"\u003e\u003cstrong\u003e$23.14 = exp(π)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #0000ff;\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003ePrinted on Next Level Apparel \u003c\/p\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003e\u003cspan\u003e60% Combed Ring-Spun Cotton 40% Polyester\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"3Blue1Brown","offers":[{"title":"Unisex \/ XS","offer_id":40064724500634,"sku":"W.8.3.08-XS","price":26.0,"currency_code":"USD","in_stock":true},{"title":"Unisex \/ S","offer_id":40064724533402,"sku":"W.8.3.09-S","price":26.0,"currency_code":"USD","in_stock":true},{"title":"Unisex \/ M","offer_id":40064724566170,"sku":"W.8.3.10-M","price":26.0,"currency_code":"USD","in_stock":true},{"title":"Unisex \/ L","offer_id":40064724631706,"sku":"W.8.3.11-L","price":26.0,"currency_code":"USD","in_stock":true},{"title":"Unisex \/ XL","offer_id":40064724697242,"sku":"W.8.3.12-XL","price":26.0,"currency_code":"USD","in_stock":true},{"title":"Unisex \/ XXL","offer_id":40064724762778,"sku":"W.8.3.13-XXL","price":26.0,"currency_code":"USD","in_stock":true},{"title":"Unisex \/ 3XL","offer_id":40064724828314,"sku":"W.8.3.14-3XL","price":26.0,"currency_code":"USD","in_stock":true},{"title":"Curved \/ XS","offer_id":40064724893850,"sku":"X.8.3.01-XS","price":26.0,"currency_code":"USD","in_stock":true},{"title":"Curved \/ S","offer_id":40064724926618,"sku":"X.8.3.02-S","price":26.0,"currency_code":"USD","in_stock":true},{"title":"Curved \/ M","offer_id":40064724992154,"sku":"X.8.3.03-M","price":26.0,"currency_code":"USD","in_stock":true},{"title":"Curved \/ L","offer_id":40064725090458,"sku":"X.8.3.04-L","price":26.0,"currency_code":"USD","in_stock":true},{"title":"Curved \/ XL","offer_id":40064725155994,"sku":"X.8.3.05-XL","price":26.0,"currency_code":"USD","in_stock":true},{"title":"Curved \/ XXL","offer_id":40064725221530,"sku":"X.8.3.06-XXL","price":26.0,"currency_code":"USD","in_stock":true},{"title":"Curved \/ 3XL","offer_id":40064725287066,"sku":"X.8.3.07-3XL","price":26.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0571\/3195\/8426\/products\/vertical-3blue1brown-site-1.jpg?v=1623100625"},{"product_id":"zeta-spiral-shirt","title":"Zeta Spiral Shirt","description":"\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003e\u003cspan style=\"color: #0000ff;\"\u003e\u003cstrong\u003e$23.14 = exp(π)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003ePrinted on Next Level Apparel \u003c\/p\u003e\n\u003cp\u003e60% Combed Ring-Spun Cotton 40% Polyester\u003c\/p\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003eThe Riemann zeta function is the object for one of the most famous unsolved problems in math, the Riemann Hypothesis.  It's a big enough deal, in fact, to have a $1,000,000 prize offered for its resolution from the Clay Math Institute, although the money probably pales in importance compared to the mark you would make in mathematical history by resolving it.  3blue1brown viewers may be familiar with \u003ca href=\"https:\/\/www.youtube.com\/watch?v=sD0NjbwqlYw\u0026amp;feature=youtu.be\"\u003ethis video\u003c\/a\u003e walking through how the function itself is defined.  The million dollar question is whether all \"non-trivial zeros\" of this funciton lie on the line 0.5 + it, where t ranges over all real numbers.  This is the so-called \"critical line\".\u003cbr\u003e\u003cbr\u003eIllustrated on this shirt is the chaotic behavior of the zeta function on this critical line (for t ranging from 0 to 50, if you're curious), as animated \u003ca href=\"https:\/\/www.youtube.com\/watch?v=sD0NjbwqlYw\u0026amp;feature=youtu.be\u0026amp;t=1130\"\u003ehere\u003c\/a\u003e.  Why do mathematicians care? 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