pRecommended for relief of muscle tension and/or treatment of minor neck injuries, including automobile whiplash. Foam collar is also ideal for night wear. Ideal for immobilizing the neck. It also provides relief for minor neck pain or minor injuries./p pul liUniversally sized so no measurements are needed. /li liWashable and comes with a natural cotton stockinette. /li liSize: Universal 13" - 19"/li /ul/p