Described herein are methods, devices and systems for respiratory therapy delivered by a therapy vest. A therapy vest is provided in which an independent body fitting function is provided by use of a body fit layer or compartment(s). The body fit layer or compartment(s) may be controlled independently from the therapy layer or compartment(s), such that the fit of the therapy vest is placed on more equal footing with the therapy delivering components of the therapy vest. Other examples are disclosed and claimed.