After friends raved about their Chacos, I decided it was time to give 'em a try. Now I see why! I have not so great knees, and they have really helped with good support. Also, don't be alarmed if they give you blisters at first, or don't seem as amazing as expected. They will come around in a week or two. They seem like they'll last for a super-long time. Yay for Chacos!!! : ) p.s. they look good, too.