Size according to height, chubby can get 1-2 size bigger ya 
Model is 130cm wearing size 130. 
Size  | Waist  | Length  | 
110  | 50cm - 62cm  | 27cm  | 
120  | 52cm - 64cm  | 29cm  | 
130  | 52cm - 66cm  | 30cm  | 
140  | 54cm - 68cm  | 34cm  | 
150  | 58cm - 76cm  | 35cm  | 
160  | 60cm - 78cm  | 36cm   | 
*Please allow slight 1-3cm difference due to manual measurement.