Convert strokes to paths
If you have a path with a vector brush stroke applied to it, you can convert that stroke to an individual, editable path. This is sometimes referred to as "unstructuring" the path or creating an outline of the path. The stroke color and attributes of the original path are converted to fill attributes in the unstructured shape that results.
To convert a stroke to a path
Select one or more paths.
On the Object menu, click Convert Stroke to Path.
Note that this affects only paths and shapes with a nonbasic brush stroke. Basic strokes and brush strokes based on bitmapped images cannot be converted to outlines. Text objects that have brush strokes must be converted to paths before you unstructure them.