{"product_id":"purple-performance-glass-thruster-fins","title":"Performance Glass Thruster Fin Set – 3K Carbon Base \u0026 Hex Core","description":"\u003ch1\u003ePerformance Glass Thruster Fin Set – 3K Carbon Base \u0026amp; Hex Core\u003c\/h1\u003e \u003ch2\u003eOverview\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eMore drive. Responsive flex. Performance-focused surfing.\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eThe \u003cstrong\u003ePerformance Glass Thruster Fin Set\u003c\/strong\u003e is designed for surfers seeking a responsive fin setup for technical maneuvers, speed, and control. Featuring a 3K carbon base, lightweight Hex Core construction, and a flat-foil profile, these fins balance base stiffness with moderate flex for a performance-oriented feel.\u003c\/p\u003e \u003cp\u003ePositioned as an upgrade from the M21 Polymer Flex Fins, the Performance Glass series offers a different combination of materials and flex characteristics for surfers looking to refine their turns and handling.\u003c\/p\u003e \u003cp\u003eAvailable in three sizes, the set includes options for a range of rider weights. Choose the size that best matches your weight, board, and preferred surfing style.\u003c\/p\u003e \u003ch2\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e \u003cul\u003e \u003cli\u003e \u003cp\u003e\u003cstrong\u003e3K Carbon Base:\u003c\/strong\u003e Adds stiffness at the fin base to support drive and power through turns.\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003e\u003cstrong\u003eHex Core Construction:\u003c\/strong\u003e Designed to reduce weight and resin use while maintaining structural performance.\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003e\u003cstrong\u003eModerate Flex:\u003c\/strong\u003e Balances controlled flex with responsiveness to support speed through maneuvers.\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003e\u003cstrong\u003eFlat Foil Profile:\u003c\/strong\u003e Designed to promote speed and quick directional changes.\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003e\u003cstrong\u003eThruster Configuration:\u003c\/strong\u003e A versatile three-fin arrangement for a balance of drive, stability, and maneuverability.\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003e\u003cstrong\u003ePerformance-Oriented Design:\u003c\/strong\u003e Suitable for surfers working on more technical turns and responsive board control.\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003e\u003cstrong\u003eThree Size Options:\u003c\/strong\u003e Choose PG-S, PG-M, or PG-L using the manufacturer's rider-weight guide.\u003c\/p\u003e \u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eAdded Drive\u003c\/h3\u003e \u003cp\u003eThe carbon-reinforced base increases stiffness in the area where force transfers between the board and fin, supporting drive when engaging the fins through turns.\u003c\/p\u003e \u003ch3\u003eResponsive Flex\u003c\/h3\u003e \u003cp\u003eThe moderate-flex design aims to balance a firm base with controlled flex, creating a combination of speed retention and responsiveness.\u003c\/p\u003e \u003ch3\u003eLightweight Core\u003c\/h3\u003e \u003cp\u003eThe Hex Core is designed to reduce the amount of resin used and help keep the fin construction lightweight.\u003c\/p\u003e \u003ch3\u003eSpeed-Focused Design\u003c\/h3\u003e \u003cp\u003eThe flat-foil profile is intended to support speed and quick maneuvers, making this set an option for surfers who value responsive performance.\u003c\/p\u003e \u003ch2\u003eChoose Your Size\u003c\/h2\u003e \u003ctable\u003e \u003ctbody\u003e \u003ctr\u003e \u003cth\u003eFin Size\u003c\/th\u003e \u003cth\u003eRecommended Rider Weight\u003c\/th\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003ePG-S\u003c\/td\u003e \u003ctd\u003e120–150 lb\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003ePG-M\u003c\/td\u003e \u003ctd\u003e145–175 lb\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003ePG-L\u003c\/td\u003e \u003ctd\u003e180–220 lb\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003cp\u003e\u003cstrong\u003eSizing tip:\u003c\/strong\u003e The recommended weight ranges overlap. Use them as a starting point and consider your surfboard design, preferred fin feel, and typical wave conditions when selecting a size.\u003c\/p\u003e \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e \u003ctable\u003e \u003ctbody\u003e \u003ctr\u003e \u003cth\u003eFeature\u003c\/th\u003e \u003cth\u003eDetails\u003c\/th\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eProduct name\u003c\/td\u003e \u003ctd\u003ePerformance Glass Thruster Fin Set\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eProduct type\u003c\/td\u003e \u003ctd\u003eSurfboard fin set\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eConfiguration\u003c\/td\u003e \u003ctd\u003eThruster\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eBase construction\u003c\/td\u003e \u003ctd\u003e3K carbon\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eCore\u003c\/td\u003e \u003ctd\u003eHex Core\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eFlex profile\u003c\/td\u003e \u003ctd\u003eModerate\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eFoil\u003c\/td\u003e \u003ctd\u003eFlat foil\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003ePerformance focus\u003c\/td\u003e \u003ctd\u003eSpeed, drive, responsiveness, and technical maneuvers\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eAvailable sizes\u003c\/td\u003e \u003ctd\u003ePG-S, PG-M, PG-L\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eFin-box compatibility\u003c\/td\u003e \u003ctd\u003eConfirm with supplier\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eFin dimensions\u003c\/td\u003e \u003ctd\u003eConfirm with supplier\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eIncluded hardware\u003c\/td\u003e \u003ctd\u003eConfirm with supplier\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003ch2\u003eCompatibility \u0026amp; Installation\u003c\/h2\u003e \u003cp\u003eBefore ordering, confirm the fin-base system and dimensions required by your surfboard. Fin systems are not universally interchangeable.\u003c\/p\u003e \u003cp\u003eInstall the fins using compatible hardware and follow the surfboard manufacturer's instructions. Check that all fins are correctly secured before entering the water.\u003c\/p\u003e \u003ch2\u003eGet More from Your Thruster Setup\u003c\/h2\u003e \u003cp\u003eChoose the Performance Glass Thruster Fin Set for a combination of carbon-reinforced stiffness, moderate flex, and a speed-oriented profile—designed for surfers looking to refine their performance on the water.\u003c\/p\u003e","brand":"M21 Sports","offers":[{"title":"PG-S","offer_id":67747593715925,"sku":"M21-PGS-PRP","price":60.0,"currency_code":"USD","in_stock":false},{"title":"PG-M","offer_id":67747593748693,"sku":"M21-PGM-PRP","price":60.0,"currency_code":"USD","in_stock":false},{"title":"PG-L","offer_id":67747593781461,"sku":"M21-PGL-PRP","price":60.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/3057\/2501\/files\/M21-PGS-PRP.jpg?v=1791857422","url":"https:\/\/alohaswimwellness.com\/products\/purple-performance-glass-thruster-fins","provider":"Aloha Swim Wellness","version":"1.0","type":"link"}