The semi-soft boot with 3D mesh is comfortable and stops too much moisture building up inside the skate. The new comfort foam and heel cushioning also make life more pleasant.
The "cuff" (the part of the boot that comes up your leg) is stiff and comes far enough up to hold your ankle in place. Along with the triple fastening system (laces, micro-metric buckle, and strap), it holds your ankle snugly.