Ronix One boot size URGENT help

Hi all,

I just drive 6 hours to buy Ronix Bill wlth Ronix One 2014 black bindings. And i need to to go back in 15 hours so i need to decide to buy or not and i have the following concern:

My work shoe size and converse shoe size is 11, nike tennis shoe size 12. Here they have only 11 size bindings. I tried them and my toe touches to the front. My snowboard shoe size is 12 but i wear them with two socks. The problem with 11 size One binding is that it is quite snug (maybe more than it should) but this will be my first closed binding so i am not sure if it is the right feeling.

I also read about the heat molding and the only way i can do it here is with bath tub method. Do you think it will be fine with 11 size boots? Is heat molding really effective?

I really appreciate your fast response.

Thanks in advance!