The Carbon Core FX returns. Feel The Power – The Carbon Core FX is our most compressive race suit, with a locked-in feel and strong all over compression. If you liked the Carbon Flex and Carbon Flex VX, you will love the Carbon Core FX. Offering a tight feel and exceptional core support. Increased lining provides more compression while double-taping down the back offers better body position. Fit questions? Features Carbon Fiber Technology to deliver the perfect combination of power, flexibility, and durability Carbon Cage technology for long-lasting muscle compression Twin-taping along the legs lift and assist the body in staying high and horizontal in the water Internal taping and lining keeps your core supported and stable Slim opening designed in the lining offers optimized upper body mobility