ARENA Powerskin Carbon Flex Kazan Jammer Limited EditionRetains Carbon technology's core components (Intelligent Compression and the Power Return System), as well as the Carbon Flex's unique V-Flex SystemUpdates to placement of bonded seams: No taped seams along the waistline, eliminating disturbances and stress points along the waistExceptional fit and feelLaunched in 2014, the POWERSKIN Carbon-Flex became the second suit in the POWERSKIN Carbon Series, introducing the V-Flex System, a unique, innovative and patented construction developed by Arena's scientific network, designed to store potential energy which is released during dives, kicks, and turns to maximize efficiency, power and speed.While retaining Carbon technology's core components Intelligent Compression and the Power Return System strategic placement of the seams in the Carbon-Flex introduced greater flexibility, delivering complete freedom of movement around the hips, glutes, and shoulders. FINA Approved NCAA/NFHS Approved