Hoya Therapeutic Cervical Pillow for Neck Pain /Size Medium (Medium  1Pcs) 100% cotton size;Medium - 23 X 12 X 4 inches cervical neck support reduces stress on your neck and head Promotes a more restful and restorative sleep Therapeutic Cervical Neck Pillow non-toxic materials -- The most ergonomic pillow on the market! In cover + outer cover (100% cotton)