World Cup racers can have the stiff-as-a-brick boot--the Rossignol Men's TMX 90 Ski Boot gives you the right amount of moderate flex for driving it hard in the park while forgiving your shins when you come up short. A wide and accommodating 104-millimeter last lets your foot spread out in its glory, while the true-lasted, contoured Sensor Fit liner locks down the heel and wraps you up in a precise, power-packed fit. A more upright, modern neutral stance puts you in power position for optimal control and reduces fatigue, so you can make the day session turn into a night under the lights. Rossignol's TMX line is designed specifically for freestyle skiers, balancing enhanced articulation with support. The TMX 90 is flexiest boot in the adult size range, while the 104mm last accommodates wider feet or those looking for a more comfortable fit.