Had Avias in the past and was well pleased. Not so with this pair. After  four 12 hour shifts , they are as  uncomfortable as when I put them on. The Instep is WAY too high. I read the reviews and ordered an 9, should have went with a 8 1\2 . Though they would have still been uncomfortable. I would not have purchased them. I should have put the $40 towards some good shoes. live and learn.