Comments:
As of August 6, the stp description still reads "(For Women)" but this is incorrect: Dynafit has always made this boot as a unisex model.
Anyway, the boot is ultralight and walk/hikes/climbs even better than the weight indicates because the sole is sculpted to eliminate any excess in the toe and heel lugs. This means it can't be used in any binding other than Dynafit (or the current Silvretta 500, or older 300/400/404/505), but then again, why would anyone want to use a boot like this in a binding other than Dynafit? (Still compatible with all crampons, even fully automatic.)
With the upper buckle and power strap cranked all the way, the boot still has enough power to handle steep descents, as long as the ski choice is kept relatively narrow & light.