Palmer Chenille is a Mylar based flash product with all of its fibers on a single side.
When wrapped in closely spaced wraps around the hook, it makes a dense, flashy body.
When palmered forward in evenly spaced wraps, it makes for a sparse body with lots of fiber movement and flash.
When used in the latter manner, it can be substituted for a saddle hackle.
Try it in place of a saddle hackle on flies like the Woolly Bugger.
Unique, one-sided design.
Gives lots of movement and flash to the fly.