Olivia Title 100% Memory Foam is Antimicrobial and Resistant to Dust Mites Ergonomically designed semi-roll pillow; Therapeutic sleep posture to reduce head, neck, shoulder and back discomfort Can be used as a knee support pillow, lumbar support pillow, or leg spacer Use at home, at work or when traveling Size: 24.5" x 8" x 4.5" Machine washable plush velour cover