I bought the New Balance MC804 tennis shoe through Amazon, it was the first time I bought shoes without trying them on first, I was a little worried about that.  I need a wide shoes, and other name brand tennis shoes do not understand what wide means.  The MC804 fits like a glove, there was no break in at all, usually my right foot is a little pinched until brake in width wise with other brands, not with New Balance.  I use them for Zumba and they perform great, very comfortable, I would recommend them to anyone looking for tennis shoes.