nicest compared to what? rental boots? i tried them on and firstly, if your foot is not D+ in width, they are going to feel too wide and your foot will slide around. second, they actually felt softer laterally than frontwards. it felt like when i was flexing them, all i was doing was compressing the super thick tongue. i feel like the lange freeride 120 flexes better than these things do. granted, i havent skied in the SPK so i cant make any claims on whether it will perform well or not, but from what i can tell by trying it on, it definately would not work for me.