Barefoot shoes push back against the notion that all feet need to be supported. They do not have arch support because they are designed to let your feet move freely and naturally. In fact, arch support removes the opportunity for your feet to support themselves, which can actually weaken the intrinsic foot muscles. In much the same way that wearing a brace or cast on other body parts for too long weakens those areas.
While it may take time, even people who have been reliant on arch support may be able to strengthen and rehabilitate their feet so that they no longer need it. If you have preexisting foot conditions it’s best to consult a physician – some feet need to be supported at least temporarily.
Refer to the section on Who Shouldn’t Wear Barefoot Shoes? for more information.