Hip Happy Pavlik and Spica pants are made to fit over the brace or cast.
We recommend that you order the corresponding size for your child's age. Hip Happy Pants are cut generously to allow for the brace or cast. They include growing room to last right up to the next size.
If you are still unsure you can use the measurement sheets below to get measurements.
Once I have the measurements, I can compare those to the pants and advise on the best size to choose.