Top Wave 18" by Jon Renau is a synthetic hair top piece that is designed to integrate naturally and easily with clips into your own hair. It is worn over the part of your existing hair adding volume and length. Ideal for medical crown hair loss or thinning. Top Wave 18" is enforced with a monofilament top that resembles the most realistic hairline and enables parting versatility and multi-directional styling. Made with premium synthetic fiber which mimics the appearance and movement of natural hair.