DonJoy Full/Female Fource Replacement Strap Kit - All Questions

How do I know what size to order for these replacement straps.? I need to replace at least the top 2 on my daughters brace.
Thanks
Teri
There is a sticker on the inside frame of the Defiance right below the 4/5 strap that has a Brace # when ordering you will need that brace number in order to get the correct size of the brace.