David Clark's most comfortable design with advanced composite construction and Exclusive Custom Comfort System. Made from Advanced Composite Materials Exclusive Custom Comfort System: Extremely lightweight Patented headpad suspension that touches your head like a soft pillow Special headband design cradles your head just enough to block the noise Contoured gel ear seals mold softly to your head No exposed overhead cord Exclusive M7-A, the most advanced noise-canceling microphone available. Molded cords made to exceptional pull and flex standards.