I need arch support and Vionic fits that need. I find them comfortable and supportive. I generally wear size 6.5, fairly narrow foot, and in Vionic I’ve bought a 6 so far. I improved a bunion without a doctor because of the nice roomy ‘toe box’ area. Note that I have only worn open toes, sandal or slipper styles so far, especially around the house year round. But now that the bunion doesn’t bother me at all and has actually shrunk, any closed shoe has been comfortable. I may try closed shoes in this brand in the future.