Ear saver
An ear saver, also known as mask strain release strap or mask extender, is an accessory to personal [protective equipment] that relieves the strain on a mask wearer's ears that is created by the loops of face masks. Ear savers were designed as novel items during the COVID-19 pandemic by the open-source hardware community in response to requests from medical professionals reporting heavy strain on their ears. Ear savers have since been commercialized for a broader population of users as the pandemic wore on.