{"product_id":"f1-carbon-fiber-closed-heel","title":"F1 Carbon Fiber - Closed Heel","description":"\u003cdiv class=\"wpb_column vc_column_container vc_col-sm-6\"\u003e\n\u003cdiv class=\"vc_column-inner\"\u003e\n\u003cdiv class=\"wpb_wrapper\"\u003e\n\u003cdiv class=\"wpb_text_column wpb_content_element  vc_custom_1603491817187\"\u003e\n\u003cdiv class=\"wpb_wrapper\"\u003e\n\u003cp data-path-to-node=\"10\"\u003eWhen you're pushing the limits on a single breath, every ounce of energy matters. That is exactly why we built the F1. Crafted from premium, aerospace-grade carbon fiber, these blades are engineered to deliver unmatched energy transfer and immediate snap-back, all while remaining incredibly lightweight.\u003c\/p\u003e\n\u003cp data-path-to-node=\"11\"\u003eTraditional polymer fins get the job done, but carbon fiber changes the game entirely. The F1 translates your lightest kick into massive propulsion. The result? Significantly reduced leg fatigue, lower heart rate, and extended bottom times. Whether you're hunting agile pelagics in blue water or working a deep reef structure, the F1 gives you the speed and efficiency you need to close the gap on your target and get back to the surface.\u003c\/p\u003e\n\u003cp data-path-to-node=\"12\"\u003eAvailable in both medium and soft stiffnesses to perfectly match your diving style, you can easily dial in the exact flex you need for your specific body mechanics and environment. Pair them with our incredibly comfortable JBL foot pockets, and you have a fin setup that feels less like a piece of gear, and more like a natural extension of your leg.\u003c\/p\u003e\n\u003ch4\u003eFeatures:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eAvailable in Medium and Soft Blade Stiffness\u003c\/li\u003e\n\u003cli\u003eFull Foot Pocket that Utilizes Three Material Densities\u003c\/li\u003e\n\u003cli\u003eStiff Foot Pocket Bed for Enhanced Thrust\u003c\/li\u003e\n\u003cli\u003eSoft Foot Pocket Upper for Reduced Foot Fatigue\u003c\/li\u003e\n\u003cli\u003eModular Design\u003c\/li\u003e\n\u003cli\u003eTPU Side Rails\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFull Carbon Fiber Fin Blade\u003c\/li\u003e\n\u003cli\u003eOptimized Blade Profile\u003c\/li\u003e\n\u003cli\u003e23\u003cspan class=\"_Tgc _s8w\"\u003e°\u003c\/span\u003e Blade Angle\u003c\/li\u003e\n\u003cli\u003eStiff Blade Base for Maximum Transfer of Energy\u003c\/li\u003e\n\u003cli\u003eVariable-Stiffness Carbon Fiber Layering\u003c\/li\u003e\n\u003cli\u003eEmbedded JBL Tuna Coffin Logo\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"JBL Spearguns","offers":[{"title":"Soft \/ Small - Men's 6 - 7 \/ Women's 7 - 8","offer_id":51748744134977,"sku":"502-S","price":540.0,"currency_code":"USD","in_stock":true},{"title":"Soft \/ Medium - Men's 8 - 9 \/ Women's 9 -10","offer_id":51748744167745,"sku":"502-M","price":540.0,"currency_code":"USD","in_stock":true},{"title":"Soft \/ Large - Men's 10 - 11 \/ Women's 11 - 12","offer_id":51748744200513,"sku":"502-L","price":540.0,"currency_code":"USD","in_stock":true},{"title":"Soft \/ XL - Men's 12 - 13 \/ Women's 13 - 14","offer_id":51748744233281,"sku":"502-XL","price":540.0,"currency_code":"USD","in_stock":true},{"title":"Soft \/ XXL - Men's 14 - 15 \/ Women's 15 - 16","offer_id":51748821827905,"sku":"502-XXL","price":540.0,"currency_code":"USD","in_stock":true},{"title":"Medium \/ Small - Men's 6 - 7 \/ Women's 7 - 8","offer_id":51748827136321,"sku":"504-S","price":540.0,"currency_code":"USD","in_stock":true},{"title":"Medium \/ Medium - Men's 8 - 9 \/ Women's 9 -10","offer_id":51748827169089,"sku":"504-M","price":540.0,"currency_code":"USD","in_stock":true},{"title":"Medium \/ Large - Men's 10 - 11 \/ Women's 11 - 12","offer_id":51748827201857,"sku":"504-L","price":540.0,"currency_code":"USD","in_stock":true},{"title":"Medium \/ XL - Men's 12 - 13 \/ Women's 13 - 14","offer_id":51748827234625,"sku":"504-XL","price":540.0,"currency_code":"USD","in_stock":true},{"title":"Medium \/ XXL - Men's 14 - 15 \/ Women's 15 - 16","offer_id":51748827267393,"sku":"504-XXL","price":540.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/0044\/5505\/files\/502-504-carbon-fiber-full-foot-pocket-fins-03-jbl-spearguns.jpg?v=1779316246","url":"https:\/\/jblspearguns.com\/products\/f1-carbon-fiber-closed-heel","provider":"JBL Spearguns","version":"1.0","type":"link"}