In theory you can adjust these any way you'd like. In practice, it means any time you slip your footwear is suddenly  reconfigured, usually in ways that are pretty uncomfortable. I've been stuck multiple times in public, where I had to sit down and take my shoes off and spend 3 minutes fussing with them in order to be able to walk again. Pretty embarrassing.

My Keens are on the dorky side, but I'm happy to hike in those for 8 hours. I can't stand walking in my Chacos for more than 45 minutes at a time.

But they are quite cute...