The Klarity Optek ™ Overlay is a comfortable and adaptable S-type Overlay for head and neck treatments. The lower portion gently tapers for patient comfort and the overlay is equipped with additional indexing around the edges. The Carbon Fiber Optek ™ Overlay is extremely lightweight and CT-compatible. Adjustable hand grips assist with shoulder retraction. The Optek ™ Overlay is compatible with all S-Type Masks and is dual-configured for adult and pediatric patients.