According to the size chart recommends the following sizes:

 

Size S is suitable for individuals weighing between 40-50kg.

Size M is suitable for individuals weighing between 50-60kg.

Size L is suitable for individuals weighing between 60-70kg.

Additionally, this has good elasticity, so you can consider your personal preference. If you like a more fitted style, it is recommended to choose your normal size, while if you prefer a looser fit, you can choose a size up. It is also recommended to choose a size based on your own body characteristics and preferences. If you are still unsure about which size to choose, you can consider measuring your body size multiple times or consulting  service for more detailed advice.