M (recommended to wear 50-55kg years old)L (recommended to wear 55-60kgXl (recommended to wear 60-65kgXxl (recommended to wear 65-72.5kg years old)3xl (recommended to wear 72.5-80kg4xl (recommended to wear 80-90kg5xl (recommended to wear 90-105kg6xl (recommended to wear 105-120kg