Good pair of boots. I never adjusted the disk that's in the heel. Just put them on right out of the box. They're the Bates quality I'm used to. This is my third pair of Bates but I had the Ultra Lights before. Good solid boot.
Sizing was spot on. Matched up the same size with my Nike sneakers. Fast shipping and easy break in. This Delta Boot performs well.
I'm active duty Air Force and bought these for SOS. Its hot in Alabama and these boots were great. Bates designed this boot to ventilate well so my feet were dry despite 90 degrees and 90 percent humidity. I'm in a classroom most of the time but cant complain with the comfort. Very supportive boot.