This was the most comfortable boot I've ever put on my foot. I wanted to keep these boots so badly. I went back and forth but at the end of the day, I had to return them. Why would DC make a boot with this level of stiffness (7) but put a traditional lace system on them? It made the boot too soft. this boot isn't made for park rats, so I can't believe they put a traditional lace on this. There is a boa on the side, but it is connected to your laces so as your laces loosen up as you ride, so does the boa hold. The boa does make it nice to quickly adjust the boot on the fly mid run, but it will only keep short term. If you are looking for a mid flex (4-5) I would highly recommend this boot. also you have to be ok with traditional lace systems.
Also important to note is that these boots run about 1/2 size small. There was only a very little bit of heel lift. 2nd best of the 6 boots I ordered and tried on
Again, most comfortable boot ever.