l have a size 9.5 shoe and l dont know wat size bindings to get medium or large

most likely large. the toe pad extends in most bindings, but the width never changes. l checked out this chart from an online snowboard shop

http://the-house.com/site/info/info-size-05bindings.html

Is there snow yet??

It depends on brand and model of your boots and bindings. Burton bindings, with almost any boot, 9.5 will be a MEDIUM. Drake, you're a large. Rome, you're a L/XL. Ride, Large. Salomon, Medium. Again, not exact, but that should get you close : ) If you want exact, add your boot model and binding choice into the question. Happy Riding!

It also depends on how bulky your boot it. l have the DC park boot and wear size 9 so l need a size S/M Rome binding. Take your boots with you when you go and pick out your bindings, that way you know for sure that they will fit.

take yer boots with u when u want to buy such a important thing, and ask a coach about it,