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It’s the kind of shirt that starts conversations—whether at a math circle, a hackathon, or a casual meetup.\n\nProduct features\n- 100% cotton solid colors — medium-weight 180 g\/m² for year-round comfort\n- Tubular knit (no side seams) and ribbed collar for shape retention and clean lines\n- Shoulder twill tape and classic fit for stability and relaxed wear\n- Dual printing: DTF for sleeves\/labels and DTG for main design — crisp, detailed print\n- Certified and ethical: Oeko-Tex certified, US cotton sourced, 2-year EU warranty\n\nCare instructions\n- Non-chlorine: bleach as needed\n- Do not iron\n- Do not dryclean\n- Machine wash: cold (max 30C or 90F)\n- Tumble dry: low heat\n","brand":"Printify","offers":[{"title":"S \/ Charcoal","offer_id":67654116901230,"sku":"30576483376585576572","price":20.45,"currency_code":"USD","in_stock":true},{"title":"S \/ Dark 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