On the third day of riding these boots, the walk mode lever which is made from cast aluminum, broke.
On the fourth day of riding these boots the cuff alignment screw fell out. This rendered the boot worthless.
Contacted K2 and they sent me a replacement cuff.
Now as I look at the bottom of the boots, the rubber toe and heel pieces are already worn down to the plastic.
I dunno if I just got a lemon or what... I am not impressed by K2's boot line never the less.