I wear a womens size 9 D (wide) usually, but I bought the mens size 7 since I have wide feet and the womens tides did not come in a wide. Some of the womens tide sandal reviews say for a wide width to just order a size up in the women's sizes which will probably be wide enough, but  also be too long, and for a $60-$80  flip flop I am not interested in having a shoe that is too long for my feet in order to have it fit my width because then it defeats the purpose of the arch support since then they won't rest in the right spot anyways.

SO anyways, with the men size 7 attempting to use for a womens 9D the footbed was a perfect fit and could have been great in terms of the length which perfectly matched my foot length, and I also really liked the firm arch support of the footbed, but the straps were too loose in the top part and the middle part of the flip flop thong rubbed against my inner toes after only 20 minutes of wearing them which would be problematic if I was wearing these for hours at a time so I will be returning them.

Vionic should have a better option for women with wide feet since wide footed people are the ones who most often need arch support. If you have a wide and somewhat tall or chunky type of womans foot these could work well for you in terms of the length and space available for the foot, but for regular wide/flat feet these are a fail. Disappointed that a brand with such overall good reviews does not have something for my specific issues. I guess I'm getting Birkenstocks instead.