I've never bought FJ shoes, I took a chance a men's size 11-1/2 would fit as would my adidas. However, they are too big and do not accept returns. I did nine holes and found I didn't like the Boa twist system on the back of the heel (instead of the top and one side of the shoe like my Adidas. For old folks with bad backs, the Boa system wobbles though are these shoes hard to come by I think they will be ok if you are in a cart but I don't drive. They are waterproof for morning walks.