I did NOT like my Kyber's. They are comfy but are heavy, hot, and chunky.
Go with Garmont T8. They have been the BEST pair of boots I have had. I actually have two sets of them. They have lasted many miles of rucks and ruck runs(Sandhurst, 2x summer training, Norweigan foot march, half marathon, etc...). Also, it does not take long to break them in. They support the foot better in my opinion.