I've never been a "Hat Guy".  In fact, I've hated wearing hats my whole life.  Lately, I've decided to try again, and this is the first hat I chose to try, because it's solid black and has Velcro for patches.  Man, was I surprised!  This hat is easily adjustable and really comfortable (compared to the dozen or so others I've tried in my life).  I bought some patches on eBay and now I sport a bio-hazard hat, and when I feel like it, I either just go all black or swap out for Jedi or whatever I'm in the mood for.