Answer They can be adjusted but are delicate.
Answer These straps are adjustable, although I found that the strap closest to the ankle was still not wide enough to get it on my wide foot. The buttons are sort of hard to adjust-they are attached to the shoe with elastic and you have to slide the button out of the leather slot and put it into another slot to adjust. The leather is fairly stiff making it a bit hard to do. These are cute shoes if your foot is narrower than mine which is a C width