OSIS Rough Rubber is the first rugged texturizer to roughen and matte your style for long-wearing, natural-looking rugged looks. This product, with an innovative micro-sponge technology, keeps the hair malleable at all times. OSIS+ Rough Rubber separates, defines and shapes the hair the way you want it. It does not give shine to the hair, but provides a subtle matte effect. In addition, it gives strong style control for thick hair, but does not overload finer hair types.