Danner Nike Oakley, benville, a few others. Honestly most people buy their own after we get out of basic to fit what they like according to what they do. The boots S-3 wear while sitting in the office all day vs the ones we wore in recovery vs the ones the cav scouts would wear where all kinda different.
But anyhow these where the ones I wore, problem is the steel toe wore out quicker and the way their made to be breathable isn't good for water resistance out here
And I have to buy mine new because I have a small but wide wide foot so it's a pain to find my size