{"product_id":"p-np-chalkboard-t-shirt-math-puzzle-vintage-classroom-tee","title":"P = NP Chalkboard T-Shirt — Math Puzzle Vintage Classroom Tee","description":"Soft, breathable cotton meets quiet wit. This lightweight tee features a vintage classroom scene with “P = NP” chalked on an old blackboard — a clever nod that lands with a wink for coders, mathematicians, CS students, and logic lovers. The shirt’s relaxed retail fit and crew neckline make it easy to layer under a jacket or wear on its own during study sessions, hack nights, or casual meetups. Subtle weathered tones in the print give it a lived-in, nostalgic feel that reads smart without shouting. Wear it to explain nothing and spark conversations instead.\n\nProduct features\n- 100% Airlume combed and ring-spun cotton; lightweight 4.2 oz\/yd² for breathable comfort\n- Retail fit with crew neckline and side seams for shape retention and easy layering\n- Ribbed knit collar with shoulder tape and tear-away label for comfort and durability\n- Print methods: crisp Direct-to-Film (DTF) for body and sleeves; some providers use Direct-to-Garment (DTG) for richer color variants\n- REACH certified; Bella+Canvas manufacturing with ethical labor certifications; blank sourced from Honduras\n\nCare instructions\n- Machine wash: cold (max 30C or 90F)\n- Non-chlorine: bleach as needed\n- Tumble dry: low heat\n- Iron, steam or dry: medium heat\n- Do not dryclean\n","brand":"Printify","offers":[{"title":"XS \/ Black","offer_id":49546977804426,"sku":"13072499893657410386","price":18.81,"currency_code":"USD","in_stock":true},{"title":"S \/ Athletic Heather","offer_id":49546977837194,"sku":"16776754675819477845","price":18.81,"currency_code":"USD","in_stock":true},{"title":"S \/ Black","offer_id":49546977869962,"sku":"31039505012110852230","price":18.81,"currency_code":"USD","in_stock":true},{"title":"S \/ Navy","offer_id":49546977902730,"sku":"69291657192531105005","price":18.81,"currency_code":"USD","in_stock":true},{"title":"S \/ White","offer_id":49546977935498,"sku":"91772053833606794524","price":18.81,"currency_code":"USD","in_stock":true},{"title":"M \/ Athletic Heather","offer_id":49546977968266,"sku":"32987761938567152863","price":18.81,"currency_code":"USD","in_stock":true},{"title":"M \/ Black","offer_id":49546978001034,"sku":"30286902652322598967","price":18.81,"currency_code":"USD","in_stock":true},{"title":"M \/ Natural","offer_id":49546978033802,"sku":"33341942973464437074","price":18.81,"currency_code":"USD","in_stock":true},{"title":"M \/ Navy","offer_id":49546978066570,"sku":"32093927194984589812","price":18.81,"currency_code":"USD","in_stock":true},{"title":"M \/ White","offer_id":49546978099338,"sku":"28171306738373503409","price":18.81,"currency_code":"USD","in_stock":true},{"title":"L \/ Athletic Heather","offer_id":49546978132106,"sku":"14864558525075193554","price":18.81,"currency_code":"USD","in_stock":true},{"title":"L \/ Black","offer_id":49546978164874,"sku":"18029404618042318165","price":18.81,"currency_code":"USD","in_stock":true},{"title":"L \/ Natural","offer_id":49546978197642,"sku":"11919229176043916243","price":18.81,"currency_code":"USD","in_stock":true},{"title":"L \/ Navy","offer_id":49546978230410,"sku":"15463069559016359765","price":18.81,"currency_code":"USD","in_stock":true},{"title":"L \/ White","offer_id":49546978263178,"sku":"13074975912883947112","price":18.81,"currency_code":"USD","in_stock":true},{"title":"XL \/ Athletic Heather","offer_id":49546978295946,"sku":"46043070899258674897","price":18.81,"currency_code":"USD","in_stock":true},{"title":"XL \/ Black","offer_id":49546978328714,"sku":"97348022363864531692","price":18.81,"currency_code":"USD","in_stock":true},{"title":"XL \/ Natural","offer_id":49546978361482,"sku":"55245972071495686755","price":18.81,"currency_code":"USD","in_stock":true},{"title":"XL \/ Navy","offer_id":49546978394250,"sku":"13957531582451253106","price":18.81,"currency_code":"USD","in_stock":true},{"title":"XL \/ White","offer_id":49546978427018,"sku":"32736120337065932689","price":18.81,"currency_code":"USD","in_stock":true},{"title":"2XL \/ Athletic Heather","offer_id":49546978459786,"sku":"33149538666933981120","price":23.03,"currency_code":"USD","in_stock":true},{"title":"2XL \/ Black","offer_id":49546978492554,"sku":"27122524196260713202","price":23.03,"currency_code":"USD","in_stock":true},{"title":"2XL \/ Natural","offer_id":49546978525322,"sku":"31710627823783427008","price":23.03,"currency_code":"USD","in_stock":true},{"title":"2XL \/ Navy","offer_id":49546978558090,"sku":"52786756918724458589","price":23.03,"currency_code":"USD","in_stock":true},{"title":"2XL \/ White","offer_id":49546978590858,"sku":"18442511044087199981","price":23.03,"currency_code":"USD","in_stock":true},{"title":"3XL \/ Athletic Heather","offer_id":49546978623626,"sku":"20887856502884362439","price":26.86,"currency_code":"USD","in_stock":true},{"title":"3XL \/ Black","offer_id":49546978656394,"sku":"13472738659968141453","price":26.86,"currency_code":"USD","in_stock":true},{"title":"3XL \/ White","offer_id":49546978689162,"sku":"31151101491137715622","price":26.86,"currency_code":"USD","in_stock":true},{"title":"4XL \/ Black","offer_id":49546978721930,"sku":"28161498720854497731","price":31.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/6211\/7258\/files\/4771290376432846547_2048.jpg?v=1781479373","url":"https:\/\/enforge-designs.myshopify.com\/products\/p-np-chalkboard-t-shirt-math-puzzle-vintage-classroom-tee","provider":"Enforge Designs","version":"1.0","type":"link"}