{"product_id":"p-np-vintage-blackboard-sweatshirt","title":"P = NP Vintage Blackboard Sweatshirt — Math Nerd Crewneck for Programmers \u0026 Students","description":"A soft, cozy crewneck sweatshirt that carries a quiet, clever statement — an aged classroom scene with “P = NP” chalked on the blackboard. The mid-weight cotton-poly blend drapes comfortably while the tubular knit construction keeps lines clean and waste minimal. Wear it on long study nights, casual meetups with fellow problem-solvers, or when you want to spark a conversation about algorithms without saying a word. The printed image has a vintage, slightly worn look that pairs with neutral layers and lived-in denim. Practical details — ribbed collar and cuffs, reinforced double-needle stitching, and a tear-away label — keep this piece feeling thoughtful and comfortable for everyday wear.\n\nProduct features\n- Medium-heavy 50\/50 cotton-poly fabric (8.0 oz\/yd²) for warmth and durability\n- Tubular knit (no side seams) for a clean silhouette and reduced fabric waste\n- Ribbed knit collar with seam and double-needle stitching for shape retention and strength\n- Image print with vintage classroom motif; DTF inner neck labels and wrist prints, DTG for main prints\n- Ethically grown US cotton, OEKO-TEX® STANDARD 100 certified dyes; meets safety and compliance standards\n\nCare instructions\n- Machine wash: cold (max 30C or 90F)\n- Non-chlorine: bleach as needed\n- Tumble dry: low heat\n- Do not dryclean\n- \n","brand":"Printify","offers":[{"title":"S \/ Navy","offer_id":49546982293642,"sku":"27108805599042509343","price":29.78,"currency_code":"USD","in_stock":true},{"title":"S \/ Sand","offer_id":49546982326410,"sku":"23557763516589567316","price":29.78,"currency_code":"USD","in_stock":true},{"title":"S \/ Sport Grey","offer_id":49546982359178,"sku":"12171055798919518309","price":29.78,"currency_code":"USD","in_stock":true},{"title":"S \/ White","offer_id":49546982391946,"sku":"25308749586346070060","price":29.78,"currency_code":"USD","in_stock":true},{"title":"S \/ Black","offer_id":49546982424714,"sku":"15387121255544154341","price":29.78,"currency_code":"USD","in_stock":true},{"title":"M \/ Navy","offer_id":49546982457482,"sku":"14402579947415040510","price":29.78,"currency_code":"USD","in_stock":true},{"title":"M \/ Sand","offer_id":49546982490250,"sku":"13892258785698451329","price":29.78,"currency_code":"USD","in_stock":true},{"title":"M \/ Sport Grey","offer_id":49546982523018,"sku":"10266114726183745471","price":29.78,"currency_code":"USD","in_stock":true},{"title":"M \/ White","offer_id":49546982555786,"sku":"30569408710498283175","price":29.78,"currency_code":"USD","in_stock":true},{"title":"M \/ Black","offer_id":49546982588554,"sku":"19263133647995709328","price":29.78,"currency_code":"USD","in_stock":true},{"title":"L \/ Navy","offer_id":49546982621322,"sku":"10496877941380911228","price":29.78,"currency_code":"USD","in_stock":true},{"title":"L \/ Sand","offer_id":49546982654090,"sku":"14496108885241596355","price":29.78,"currency_code":"USD","in_stock":true},{"title":"L \/ Sport Grey","offer_id":49546982686858,"sku":"24572622579339523614","price":29.78,"currency_code":"USD","in_stock":true},{"title":"L \/ White","offer_id":49546982719626,"sku":"68220138287184166870","price":29.78,"currency_code":"USD","in_stock":true},{"title":"L \/ Black","offer_id":49546982752394,"sku":"31390772484521388873","price":29.78,"currency_code":"USD","in_stock":true},{"title":"XL \/ Navy","offer_id":49546982785162,"sku":"12669929538186885111","price":29.78,"currency_code":"USD","in_stock":true},{"title":"XL \/ Sand","offer_id":49546982817930,"sku":"10360752893795392241","price":29.78,"currency_code":"USD","in_stock":true},{"title":"XL \/ Sport Grey","offer_id":49546982850698,"sku":"11466099222932167890","price":29.78,"currency_code":"USD","in_stock":true},{"title":"XL \/ White","offer_id":49546982883466,"sku":"18041468912240242698","price":29.78,"currency_code":"USD","in_stock":true},{"title":"XL \/ Black","offer_id":49546982916234,"sku":"61749499021054307293","price":29.78,"currency_code":"USD","in_stock":true},{"title":"2XL \/ Navy","offer_id":49546982949002,"sku":"20173237684533123231","price":34.28,"currency_code":"USD","in_stock":true},{"title":"2XL \/ Sand","offer_id":49546982981770,"sku":"10692172931945193057","price":34.28,"currency_code":"USD","in_stock":true},{"title":"2XL \/ Sport Grey","offer_id":49546983014538,"sku":"21618923306345292724","price":34.28,"currency_code":"USD","in_stock":true},{"title":"2XL \/ White","offer_id":49546983047306,"sku":"18731529530148942642","price":34.28,"currency_code":"USD","in_stock":true},{"title":"2XL \/ Black","offer_id":49546983080074,"sku":"48636223095111797052","price":34.28,"currency_code":"USD","in_stock":true},{"title":"3XL \/ Sand","offer_id":49546983112842,"sku":"22460229625704763389","price":36.71,"currency_code":"USD","in_stock":true},{"title":"3XL \/ White","offer_id":49546983145610,"sku":"16155593740700416372","price":36.71,"currency_code":"USD","in_stock":true},{"title":"3XL \/ Black","offer_id":49546983178378,"sku":"13979666753254225940","price":36.71,"currency_code":"USD","in_stock":true},{"title":"4XL \/ Black","offer_id":49546983211146,"sku":"95895285135611405416","price":41.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/6211\/7258\/files\/17094983771954022860_2048.jpg?v=1781479402","url":"https:\/\/enforge-designs.myshopify.com\/products\/p-np-vintage-blackboard-sweatshirt","provider":"Enforge Designs","version":"1.0","type":"link"}