The Catalyst Cryo-Helmet is a wearable brain cooling system designed to help with headaches and migraines. It features refreezable cooling cubes to provide relief and is suitable for adults. This black helmet in size M/L is lightweight at 2 and is best for athletes looking to improve their performance and reduce stress. The product is manufactured in China by the brand Catalyst and is ideal for those who need a reliable and efficient solution to help manage their headaches or migraines during intense physical activities.