Replying to Binding Width?

So I got some Line Chronics the other day and im ordering my bindings here and and im not completey sure which width I am supposed to get. I wouldnt usually make a thread about gear etc, but I dont want to get the bindings and realize that I ordered the wrong ones. I was looking at the Rossi SAS2 140 Wides that come in a size 100 brake size. My chronics waist is measured at 85 udnerfoot and I am wondering if this is the right bindings width for me.... dosent sound right but what do i know.