The 2011-2012 Rossignol ZA Soft 110 flex is Rossi's new and improved World Cup Race Boot. The Rossi Race Boot is a low profile Race Boot meant for elite athletes. This is the boot used by Rosignol's athletes at the top levels, including the World Cup.
This boot comes in three different flexes: ZA Soft (110 flex) This is the same plastic as the regular ZA/ZA except for softening cuts in the lower shell, The ZA/ZA (120-130 flex) this does not have the softening cuts in the lower shell, and ZB/ZB (140 flex). The Rossi World Cup Race Boot also features a lace up liner. This series of Rossi Boots is for the serious racer, narrow fit but with flexes available to fit any need elite J3 and J2 ZA Soft to J2 J1 Masters ZA, top FIS athlete ZB flex.