306 to provide greater structural continuity in alternative embodiments a bottom face 308 of the base adheres directly to the exposed surface 304 a of the elastomeric layer 304 the second layer 303 is created by a multilayer structure incorporating a screen and or foil metallic layer 310 such as aluminum a polymer layer 312 such as peek and an adhesive layer 314 supports the elastomeric layer 304 the polymer layer 312 and adhesive layer 314 may be supplied as a portion of the preformed appliqu u00e9 as described with respect to fig9 below or directly deposited on the elastomeric layer 304 the metallic layer 310 provides a conducting material for lightning strike protection in an exemplary aircraft usage of the embodiment the metallic layer polymer and adhesive multilayer structure may be comparable to a current lightning strike appliqu u00e9 lsa employed for composite aircraft structural surfaces the elastomer layer 304 supporting the riblet tips 302 may provide elastic sideways deformation and recovery for the tips 302 when lateral forces are applied thereby further enhancing the durability of the rigid riblet tips additionally the elastomeric layer 304 flexibility may allow greater ability to conform to complex contour shapes fig4 demonstrates a third embodiment for the rigid tipped riblets 112 in fig1 which takes advantage of the structural capability provided by the material from which the riblets 112 are formed to allow a sharper profile of tips 402 for the embodiment shown in each of the tips 402 extends from a base 406 supported in an elastomer layer 404 as with the.