{"title":"K4","description":"K4 Fins specialise in innovative \u0026amp; revolutionary performance fins for SUP racing, SUP Surf and general SUP Cruising!\r\nK4 fins are made using plastic composite – giving them extra flex, reflex \u0026amp; outstanding performance.","products":[{"product_id":"k4-sup-race-fin-21cm","title":"K4 SUP Race Fin 21cm (8.2\")","description":"\u003ch1 class=\"pro-head\"\u003eK4 SUP Race Fin 21cm (8.2\")\u003c\/h1\u003e\n\u003cp\u003eThe K4 SUP Race fin from K4Fins has been tried, tested and podium finished.\u003c\/p\u003e\n\u003cp\u003eK4's swept back SUP race fin is set on a 45 degree rake so you don’t have to worry about weed or debris.\u003c\/p\u003e\n\u003cp\u003eFoil optimised for paddling speeds, but taking many pointers from their speed windsurfing fins. In fact they stuck this yellow fin in their windsurf board and did 48mph on it!\u003c\/p\u003e\n\u003cp\u003eDynamic Flex material gives more grip, better tracking and more speed than stiffer materials. (Fins with flex are always faster than stiff fins when the loads and AOA are low)\u003c\/p\u003e\n\u003cp\u003eAlready proven on the SUP race course with Andre Le Geyt finishing 7th in the 11 Cities. Available in a choice of two sizes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWeight: 215.00 Grams\u003c\/li\u003e\n\u003cli\u003eArea: 210.00 cm2\u003c\/li\u003e\n\u003cli\u003eMaterial: Dynamic Flex\u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"K4 Fins","offers":[{"title":"Default Title","offer_id":65366903095645,"sku":"SUR21","price":39.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1057\/2818\/0573\/files\/sup-race.jpg?v=1784931251"},{"product_id":"k4-sup-surf-front-fins-fcs","title":"K4 SUP Wave Front Fins - FCS","description":"\u003ch1 class=\"pro-head\"\u003eK4 SUP Wave Front Fins - FCS\u003c\/h1\u003e\n\u003cp\u003eThe K4 SUP surf fins from K4Fins have had a unanimous thumbs up from the SUP surf crew; from the Bluesmiths team using them in Maui perfection, to the likes of big wave ripper Finn Mullen in Ireland, through to those in the UK having their first experience of Stand Up Paddling with Loco-SUP and of course the K4 team riders.\u003c\/p\u003e\n\u003cp\u003eWe’re excited to bring you a substantial range of sizes to tune your board for every wave.\u003c\/p\u003e\n\u003cp\u003eThe asymmetric front fins are available in 7cm (2.75\"), 8cm (3.15\"), 10cm (3.94\") and 12cm (4.72\").\u003c\/p\u003e\n\u003cp\u003eSold in pairs for £18\u003c\/p\u003e\n\u003cp\u003eFCS Core \/ Original Design\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDynamic Flex\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eDynamic Flex is the rippers choice. It's K4's original flex fin material. Its ability to flex and spring back to its original shape means crazy grip and extreme angles of attack and epic round house turns. You'll also find it easier to crank back up hard at the critical section, then gouge or project off the lip. The K4 original yellow fins, Dynamic Flex for ripping!\u003c\/p\u003e\n","brand":"K4 Fins","offers":[{"title":"7cm","offer_id":65368150901085,"sku":"k4-surf-front-fcs","price":18.0,"currency_code":"GBP","in_stock":true},{"title":"8cm","offer_id":65368150933853,"sku":"k4-surf-front-fcs","price":18.0,"currency_code":"GBP","in_stock":false},{"title":"10cm","offer_id":65368150966621,"sku":"k4-surf-front-fcs","price":18.0,"currency_code":"GBP","in_stock":false},{"title":"12cm","offer_id":65368150999389,"sku":"k4-surf-front-fcs","price":18.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1057\/2818\/0573\/files\/k4-sup-surf-front-fcs-fins.jpg?v=1784953036"},{"product_id":"k4-sup-surf-front-fins-futures","title":"K4 SUP Wave Front Fins - Futures","description":"\u003ch1 class=\"pro-head\"\u003eK4 SUP Wave Front Fins - Futures\u003c\/h1\u003e\n\u003cp\u003eThe K4 SUP surf fins from K4Fins have had a unanimous thumbs up from the SUP surf crew; from the Bluesmiths team using them in Maui perfection, to the likes of big wave ripper Finn Mullen in Ireland, through to those in the UK having their first experience of Stand Up Paddling with Loco-SUP and of course the K4 team riders.\u003c\/p\u003e\n\u003cp\u003eWe’re excited to bring you a substantial range of sizes to tune your board for every wave.\u003c\/p\u003e\n\u003cp\u003eThe asymmetric front fins are available in 7cm (2.75\"), 8cm (3.15\"), 10cm (3.94\") and 12cm (4.72\").\u003c\/p\u003e\n\u003cp\u003eSold in pairs for £18\u003c\/p\u003e\n\u003cp\u003eFutures Design\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDynamic Flex\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eDynamic Flex is the rippers choice. It's K4's original flex fin material. Its ability to flex and spring back to its original shape means crazy grip and extreme angles of attack and epic round house turns. You'll also find it easier to crank back up hard at the critical section, then gouge or project off the lip. The K4 original yellow fins, Dynamic Flex for ripping!\u003c\/p\u003e\n","brand":"K4 Fins","offers":[{"title":"7cm","offer_id":65368211849565,"sku":"k4-surf-front-futures","price":18.0,"currency_code":"GBP","in_stock":false},{"title":"8cm","offer_id":65368211882333,"sku":"k4-surf-front-futures","price":18.0,"currency_code":"GBP","in_stock":true},{"title":"10cm","offer_id":65368211915101,"sku":"k4-surf-front-futures","price":18.0,"currency_code":"GBP","in_stock":true},{"title":"12cm","offer_id":65368211947869,"sku":"k4-surf-front-futures","price":18.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1057\/2818\/0573\/files\/k4-sup-surf-front-fcs-fins_108d43d2-fc83-4ec8-a6a7-1893cf686566.jpg?v=1784953056"},{"product_id":"k4-sup-surf-rear-fin","title":"K4 SUP Wave Rear Flex Fin - US","description":"\u003ch1 class=\"pro-head\"\u003eK4 SUP Wave Rear Flex Fin - US\u003c\/h1\u003e\n\u003cp\u003eThe original K4 SUP Wave Rear Flex fin for performance wave riding and the first choice for pro team riders. Great flex for amazing grip and looseness on the wave. Raked template for control. A progressive foil for different flows between tip and base.  Will loosen up a ‘stiff’ board.\u003c\/p\u003e\n\u003cp\u003eThe rear fins are available in 16cm (6.30\"), 17cm (6.70\"), 18cm (7.08\") and 20cm (7.87\").\u003c\/p\u003e\n\u003cp\u003eSold as a single fin.\u003c\/p\u003e\n\u003cp\u003eUS Finbox Design\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDynamic Flex\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eDynamic Flex is the rippers choice. It's K4's original flex fin material. Its ability to flex and spring back to its original shape means crazy grip and extreme angles of attack and epic round house turns. You'll also find it easier to crank back up hard at the critical section, then gouge or project off the lip. The K4 original yellow fins, Dynamic Flex for ripping!\u003c\/p\u003e\n","brand":"K4 Fins","offers":[{"title":"16cm","offer_id":65368272765277,"sku":"k4-surf-rear-fin","price":29.9,"currency_code":"GBP","in_stock":true},{"title":"17cm","offer_id":65368272798045,"sku":"k4-surf-rear-fin","price":29.9,"currency_code":"GBP","in_stock":true},{"title":"18cm","offer_id":65368272830813,"sku":"k4-surf-rear-fin","price":29.9,"currency_code":"GBP","in_stock":true},{"title":"20cm","offer_id":65368272863581,"sku":"k4-surf-rear-fin","price":29.9,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1057\/2818\/0573\/files\/k4-sup-surf-rear-flex-fin.jpg?v=1784953072"}],"url":"https:\/\/www.getonthewater.co.uk\/collections\/k4.oembed","provider":"Get On The Water UK","version":"1.0","type":"link"}