{"title":"Dustin Poirier T-Shirts \u0026 Merch","description":"\u003cdiv class=\"collection-seo\"\u003e\n\n\u003cp\u003e\nShop Dustin Poirier t-shirts and fan merch for UFC fans. Find Poirier shirts and Dustin Poirier merchandise — available in black and white, unisex sizing S to 3XL, shipped worldwide. Whether you want a Dustin Poirier shirt for fight night, an everyday Poirier tee or a gift for the UFC fan in your life, this is the collection.\n\u003c\/p\u003e\n\n\u003ch2\u003eThe Diamond: Louisiana Grit at Lightweight's Highest Level\u003c\/h2\u003e\n\u003cp\u003eDustin Poirier built his career out of Lafayette, Louisiana, working through a long amateur circuit and difficult early UFC fights before becoming one of the most respected names in the lightweight division. The Diamond nickname reflects both his durability under pressure and the precision he developed as a finisher across a long professional run. His three-fight rivalry with Conor McGregor became one of the sport's defining storylines — a rematch and a trilogy that played out differently than most predicted. His charity work in Louisiana through the Good Fight Foundation added a public dimension to his profile that few fighters maintain at that level. A Poirier shirt is for fans who respect the journey as much as the knockouts.\u003c\/p\u003e\n\u003cp\u003e\nPick the \u003ca href=\"\/products\/dustin-poirier-the-diamond-t-shirt-black\" style=\"color:#C9A84C;font-weight:600;\"\u003eDustin Poirier T-Shirt Black\u003c\/a\u003e for a clean dark-ground graphic, or go with the \u003ca href=\"\/products\/dustin-poirier-the-diamond-t-shirt-white\" style=\"color:#C9A84C;font-weight:600;\"\u003eDustin Poirier T-Shirt White\u003c\/a\u003e for a brighter colourway at outdoor events. Both built on the same cut and print standard — pre-shrunk cotton, bold graphic, holds after washing.\n\u003c\/p\u003e\n\n\u003ch2\u003eDustin Poirier Apparel for Fans Who Follow the Full Arc\u003c\/h2\u003e\n\u003cp\u003eOur Diamond merch is for the fan who was watching Poirier in the early UFC days and stayed through every title shot. Dustin Poirier t-shirts come in black and white, with clean graphics built around his nickname and lightweight identity. Works as event-day fan clothing or everyday UFC fan apparel. If you are shopping for Poirier merchandise as a gift — both colourways ship fast in unisex sizing S to 3XL. Browse our full collection for more UFC fighter shirts.\u003c\/p\u003e\n\u003cp\u003e\nLooking for more UFC fighter shirts? Check out \u003ca href=\"\/blogs\/news\/who-is-dustin-poirier\" style=\"color:#C9A84C;font-weight:600;\"\u003eWho Is Dustin Poirier — Fighter Profile\u003c\/a\u003e or browse the full \u003ca href=\"\/collections\/all\" style=\"color:#C9A84C;font-weight:600;\"\u003eUFC fighter merch collection\u003c\/a\u003e.\n\u003c\/p\u003e\n\n\u003cdiv style=\"margin-top:2rem;border-top:1px solid #333;padding-top:1.5rem;\"\u003e\n\u003ch2\u003eFAQ — Dustin Poirier Shirts \u0026amp; Merch\u003c\/h2\u003e\n\n\u003cdiv style=\"margin-bottom:1.2rem;\"\u003e\n\u003cstrong style=\"display:block;margin-bottom:.4rem;\"\u003eWhat sizes are available for Dustin Poirier t-shirts?\u003c\/strong\u003e\n\u003cp style=\"margin:0;color:#aaa;\"\u003eDustin Poirier t-shirts are available in unisex sizing from S to 3XL. The fit is regular — works for training wear, event days and everyday use. Full size guide is on each product page.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin-bottom:1.2rem;\"\u003e\n\u003cstrong style=\"display:block;margin-bottom:.4rem;\"\u003eIs this official Dustin Poirier merchandise?\u003c\/strong\u003e\n\u003cp style=\"margin:0;color:#aaa;\"\u003eThis is fan-made Dustin Poirier merch, not official UFC or fighter-licensed product. It is made for fans who want a quality shirt without the premium markup that comes with licensed merchandise.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin-bottom:1.2rem;\"\u003e\n\u003cstrong style=\"display:block;margin-bottom:.4rem;\"\u003eWhat does the Diamond nickname mean on Dustin Poirier shirts?\u003c\/strong\u003e\n\u003cp style=\"margin:0;color:#aaa;\"\u003eThe Diamond is Dustin Poirier's long-time UFC nickname, referencing his toughness and precision as a fighter from Lafayette, Louisiana. It appears in our Poirier merch design and is well known among lightweight division followers who have watched his career develop.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What sizes are available for Dustin Poirier t-shirts?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Dustin Poirier t-shirts are available in unisex sizing from S to 3XL. The fit is regular \\u2014 works for training wear, event days and everyday use. Full size guide is on each product page.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this official Dustin Poirier merchandise?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"This is fan-made Dustin Poirier merch, not official UFC or fighter-licensed product. It is made for fans who want a quality shirt without the premium markup that comes with licensed merchandise.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What does the Diamond nickname mean on Dustin Poirier shirts?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The Diamond is Dustin Poirier's long-time UFC nickname, referencing his toughness and precision as a fighter from Lafayette, Louisiana. It appears in our Poirier merch design and is well known among lightweight division followers who have watched his career develop.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","products":[{"product_id":"dustin-poirier-the-diamond-t-shirt-black","title":"Dustin Poirier The Diamond T-Shirt Black","description":"\u003cp\u003eBlack oversized Dustin Poirier The Diamond t-shirt on heavyweight cotton — diamond gem graphic inspired by the UFC lightweight contender's wins at UFC 257 and UFC 242. Printed to order, ships worldwide. Poirier shirt in sizes S–3XL.\u003c\/p\u003e\n\n\u003ch2\u003eDustin Poirier Shirt — The Diamond Graphic on Heavyweight Cotton\u003c\/h2\u003e\n\u003cp\u003eThis Dustin Poirier shirt centres on The Diamond identity — bold carved diamond gem with military stencil typography on 100% heavyweight cotton in a relaxed oversized unisex fit. Poirier shirt featuring the Diamond graphic, unisex sizing S to 3XL. Also available in white — see the full collection below.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Dustin Poirier The Diamond Became a UFC Legend\u003c\/h2\u003e\n\u003cp\u003eDustin Poirier is one of the most respected lightweight fighters in UFC history — a Cajun brawler from Lafayette, Louisiana who turned early adversity into championship-level resilience. He won the interim lightweight title at UFC 242, knocked out Conor McGregor twice (UFC 257, UFC 264), and challenged for the undisputed title at UFC 269. The Diamond Louisiana MMA shirt style draws from that grit — Cajun fighter apparel referencing the McGregor knockouts and the Lafayette warrior identity.\n\u003ca href=\"\/collections\/dustin-poirier-merch\" style=\"color:#C9A84C;font-weight:600;text-decoration:none;\"\u003eShop the full Poirier collection →\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2\u003eBuy Dustin Poirier Shirt — Diamond Oversized UFC Streetwear\u003c\/h2\u003e\n\u003cp\u003eBuy Dustin Poirier shirt in black — Diamond tee printed to order on heavyweight cotton, dispatched worldwide. Dustin Poirier Diamond t shirt black oversized, from €34 in sizes S to 3XL. UFC 257 Dustin Poirier apparel now available — Poirier fight shirt with no import fees, tracked shipping globally.\n\u003ca href=\"\/collections\/dustin-poirier-merch\" style=\"color:#C9A84C;font-weight:600;text-decoration:none;\"\u003eBrowse all Poirier merch →\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2\u003eSpecs, Sizing \u0026amp; Worldwide Delivery\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e100% heavyweight cotton — relaxed oversized unisex fit, black\u003c\/li\u003e\n  \u003cli\u003eDTG print — white Diamond graphic, wash-resistant, no cracking or fading\u003c\/li\u003e\n  \u003cli\u003eRelaxed oversized unisex fit — true to size — S, M, L, XL, 2XL, 3XL\u003c\/li\u003e\n  \u003cli\u003ePrinted to order — dispatched within 3–5 business days\u003c\/li\u003e\n  \u003cli\u003eUS\/UK: 4–7 business days · EU: 5–8 business days · Worldwide tracked\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eOrder from €34. Printed to order — ships within 3–5 business days.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs this Dustin Poirier shirt official UFC merchandise?\u003c\/strong\u003e\u003cbr\u003eNo — this is an independent fan-made Dustin Poirier shirt, not officially licensed by the UFC or Dustin Poirier. The The Diamond design is original artwork inspired by the fighter's aesthetic.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does \"The Diamond\" mean on the shirt?\u003c\/strong\u003e\u003cbr\u003e\"The Diamond\" is Dustin Poirier's nickname, a nod to the pressure-forged resilience of his career — rising from Cajun Louisiana through hard early UFC losses to become one of the most respected fighters in the lightweight division, including back-to-back knockouts of Conor McGregor.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the fit of this Dustin Poirier The Diamond t-shirt?\u003c\/strong\u003e\u003cbr\u003eThe fit is relaxed and oversized — runs true to size on heavyweight cotton. Size up for an extra-oversized silhouette. Unisex sizing S to 3XL.\u003c\/p\u003e","brand":"Printify","offers":[{"title":"Black \/ S","offer_id":62575391146314,"sku":"42504641886686344093","price":34.0,"currency_code":"EUR","in_stock":true},{"title":"Black \/ L","offer_id":62575391179082,"sku":"87507627368222357347","price":34.0,"currency_code":"EUR","in_stock":true},{"title":"Black \/ XL","offer_id":62575391211850,"sku":"31039367936817524845","price":34.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/4054\/4074\/files\/4007771822673909964_2048.jpg?v=1782859994"},{"product_id":"dustin-poirier-the-diamond-t-shirt-white","title":"Dustin Poirier The Diamond T-Shirt White","description":"\u003cp\u003eWhite oversized Dustin Poirier The Diamond t-shirt on heavyweight cotton — black-on-white boxer fists and diamond graphic inspired by the UFC lightweight contender's iconic wins at UFC 257 and UFC 264. Printed to order, ships worldwide. Poirier shirt in sizes S–3XL.\u003c\/p\u003e\n\n\u003ch2\u003eDustin Poirier Shirt White — The Diamond Graphic on Heavyweight Cotton\u003c\/h2\u003e\n\u003cp\u003eThis Dustin Poirier shirt in white centres on The Diamond identity — black-on-white boxer fists with energy lines and diamond shapes on 100% heavyweight cotton in a relaxed oversized unisex fit. Poirier t shirt white oversized, available in sizes S to 3XL. Also available in black — see the full collection below.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Dustin Poirier The Diamond Became a UFC Legend\u003c\/h2\u003e\n\u003cp\u003eDustin Poirier is a Louisiana lightweight with one of the most respected careers in UFC history — two knockouts of Conor McGregor, an interim title reign after UFC 242, and a title shot at UFC 269. The Diamond nickname reflects the pressure-forged resilience that defines his fighting identity. The white Poirier shirt draws from that Cajun striker legacy — Louisiana fighter apparel and Diamond t shirt referencing the McGregor rematch era.\n\u003ca href=\"\/collections\/dustin-poirier-merch\" style=\"color:#C9A84C;font-weight:600;text-decoration:none;\"\u003eShop the full Poirier collection →\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2\u003eBuy Dustin Poirier White Shirt — Diamond Oversized UFC Streetwear\u003c\/h2\u003e\n\u003cp\u003eBuy Dustin Poirier shirt in white — Diamond tee printed to order on heavyweight cotton, dispatched worldwide. Dustin Poirier Diamond t shirt white oversized, from €37 in sizes S to 3XL. Poirier fight shirt with no import fees, tracked shipping globally.\n\u003ca href=\"\/collections\/dustin-poirier-merch\" style=\"color:#C9A84C;font-weight:600;text-decoration:none;\"\u003eBrowse all Poirier merch →\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2\u003eSpecs, Sizing \u0026amp; Worldwide Delivery\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e100% heavyweight cotton — relaxed oversized unisex fit, white\u003c\/li\u003e\n  \u003cli\u003eDTG print — black Diamond graphic, wash-resistant, no cracking or fading\u003c\/li\u003e\n  \u003cli\u003eRelaxed oversized unisex fit — true to size — S, M, L, XL, 2XL, 3XL\u003c\/li\u003e\n  \u003cli\u003ePrinted to order — dispatched within 3–5 business days\u003c\/li\u003e\n  \u003cli\u003eUS\/UK: 4–7 business days · EU: 5–8 business days · Worldwide tracked\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eOrder from €37. Printed to order — ships within 3–5 business days.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs this Dustin Poirier shirt official UFC merchandise?\u003c\/strong\u003e\u003cbr\u003eNo — this is an independent fan-made Dustin Poirier shirt, not officially licensed by the UFC or Dustin Poirier. The The Diamond design is original artwork inspired by the fighter's aesthetic.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does \"The Diamond\" mean on the shirt?\u003c\/strong\u003e\u003cbr\u003e\"The Diamond\" is Dustin Poirier's nickname, a nod to the pressure-forged resilience of his career — rising from Cajun Louisiana through hard early UFC losses to become one of the most respected fighters in the lightweight division, including back-to-back knockouts of Conor McGregor.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the fit of this Dustin Poirier The Diamond t-shirt?\u003c\/strong\u003e\u003cbr\u003eThe fit is relaxed and oversized — runs true to size on heavyweight cotton. Size up for an extra-oversized silhouette. Unisex sizing S to 3XL.\u003c\/p\u003e","brand":"Printify","offers":[{"title":"White \/ S","offer_id":62575397142858,"sku":"30078537407666009434","price":37.0,"currency_code":"EUR","in_stock":true},{"title":"White \/ M","offer_id":62575397175626,"sku":"22213007493520197685","price":37.0,"currency_code":"EUR","in_stock":true},{"title":"White \/ L","offer_id":62575397208394,"sku":"15968602509029851746","price":37.0,"currency_code":"EUR","in_stock":true},{"title":"White \/ XL","offer_id":62575397241162,"sku":"52065429238214134919","price":37.0,"currency_code":"EUR","in_stock":true},{"title":"White \/ 2XL","offer_id":62575397273930,"sku":"29748126693158269485","price":37.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/4054\/4074\/files\/9371353420132544477_2048.jpg?v=1782860095"}],"url":"https:\/\/merchufc.com\/collections\/dustin-poirier-merch.oembed","provider":"Fighter merch","version":"1.0","type":"link"}