The K2 Thraxis Clicker X HB Snowboard Boots are the stiffest boots that K2 offers in their freeride boot line up. With a flex rating of 10 out of 10, this boot is beast and is designed and intended for only the most advanced and aggressive riders. The Thraxis features all the highest end features that you would come to expect out of a top-of-line boot, and sets the standard for power riding. Features would include Endo 2.0 construction, which is the most technically advanced construction in the industry today. This type of construction adds superior strength, power and durability to the boot, giving it fantastic response and precision. An Intuition Pro Fit liner fits like a glove right out of the box, but is also fully customizable with the help of your local boot fitter. AN Intuition Spaceheater is designed for added comfort while providing exceptional warmth, all due to its heat blanket panels that trap heat and keep the cold out. State of art BOA lacing systems both in the liner and outside of the boot make hug your foot in all the right spots while keeping your ankle and heel locked in for a precise feel of your board. Harshmellow technology helps dampen the ride and smooths out the vibration in rough, uneven terrain. For riders who want to charge the biggest and burliest lines, the K2 Thraxis Clicker X HB Snowboard Boots will answer the call.