As an easy reference, our product size can be referenced to your body weight..
The recommended size-to-weight are:
50kg - size S
60kg - size M
70kg - size L
80kg - size XL
90kg - size 2XL
100kg - size 3XL
p/s: as a reference; the model is wearing M size and weight at 60kg and 160cm height.
Disclaimer: This data is based on the existing customer preferences, it may or may not be applicable and is discrete to each customer.