I could probably kick field goals too, after I put my size 10 shoe inside your size 13 shoe
5 sizes though? That's like 1/3 bigger.
Take your 13's & put the sole of your shoe against the bottom of your foot.
It doesn't seem odd to you
that there is 3-5 inches of extra shoe there?
Hate to break it to ya, but you should probably remeasure your 10 inch hammer