Chin straps are supportive devices often used in various contexts, such as sports and sleep. In sports, they are commonly found in helmets, like those used in football or hockey, to keep the helmet securely in place during play. They help prevent injuries by ensuring that the helmet does not shift or come off during impact. In sleep, chin straps are used to help individuals who snore or have sleep apnea. These straps gently hold the jaw in a closed position, promoting nasal breathing and reducing the likelihood of snoring. They are typically made from soft, adjustable materials for comfort during use.