I saw a video of these back in Feburary on youtube and they looked very interesting. Now that I have a pair they are the most comfortable footwear I own presently.
Fully waterproof, comfortable yet smart. Feels like wearing a pair of trainers while in actual fact I am wearing a pair of police/military capable boots. Also the toe is somewhat re-enforced too, just a FYI.
Read the info on the 5.11 site, check out videos on youtube and then you will be convinced to get a pair. You get what you pay for and these are no exception. All 5.11 stuff I own is great!