blocked air is drawn more efficiently into the drum from a heated element area for use and eventual vent discharge the seal 30 includes a fibrous exterior layer 36 and an internal fibrous interior support layer 38 the exterior layer and the interior support layer are secured together across their interfacial surfaces such as by needling or the like such that fibers from each layer are mechanically joined to one another across the interface as the dryer is operated the drum 14 may experience a degree of oscillation up and down the joined exterior layer 36 and interior support layer 38 are folded over and seamed at a position inboard of the folded edge such as by a chain or lock stitch seam 39 such a folding and seaming operation forms a first leg 40 and a second leg 42 projecting generally away from the folded edge the first leg 40 is of substantially greater length than the second leg 42 each of the legs includes the layered structure of the exterior layer 36 and the interior support layer 38 such that the exterior layer 36 and the interior support layer 38 each extend substantially continuously from the terminal end of the first leg to the terminal end of the second leg the legs may flair out or compress as required to.