34" Rawlings Liberty Advanced was only fastpitch catchers mitt that fit my hand. I don't like white gloves, so I custom ordered one from Rawlings. Very pleased.
Rawlings fast pitch gloves come in 2 hand stall sizes, so be aware of this if you are trying them on in a store.
The Rawlings Liberty Advanced is the only fastpitch catcher's mitt to fit my hand and still have good padding. I have seen people try to use a baseball mitt, but the pocket is too small, especially when their pitches start to move. Sadly, my daughter's pitching coach put me out to pasture and won't allow me to catch her anymore. She said it's for my own good. Thankfully, I have an older daughter who catches, so it's not a real inconvenience until the older one goes to college.