They are some of the best boots I have eve used. The carbon cuff does wonders for th torsional stiffness if the boot. Because of this you can carve so hard in this boot. In the park this makes it ultra responsive on jumps. Flex wise that is pretty personal but they do have a very good flex adjustment so you can soften them down somewhat if you like. If they for you well go for them, you won't be disappointed.