Neoprene rhymes with:
chloroprene, chloroprene, chloroprene, crumrine, evergreen, fluorine, grassgreen, murine, peregrine, polystyrene, smokescreen, styrene, texstyrene, walgreen, wettergreen
Neoprene sounds like:
nephron, new-bern, newbern, newborn, newburn, nonfarm, novopharm, nvryan