Softer as in the high back is softer or the chassis in general. I'm used to having Fluxes but they're pretty heavy and they were too big. Leaning more towards the 390s unless anyone can sway me another direction. Anyone else have size 9 boots and ride ROME? Just got two different answers.
The highback is softer and there's a little more give in the straps due to the cushioning on the 390s.
I have size 9 boots and ride sm/md Targas, hence my suggestion to go one size up.