These shoes are flexible and lithe (weighing just 10 ounces each, in a women’s size 8 ... t forget to go down half a size; these shoes run notoriously large. They have tons of cred.
(As someone with wider feet, I always size up by at least a half-size ... to prevent blisters and rubbing as the shoes stretched out. Because I have bigger calves, the shafts needed the most ...