Matrix by Ellen Wille is a 100% Remy Human 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. Matrix is enforced with a monofilament center technique which creates the most natural appearance of skin like design and undetectable knots and also a soft lace front hairline for off the face styling.