Please refer to the diagram below as a reference point for the guide on sizing
 
Height\Weight 50-55 56-60 61-65 66-70 71-75 76-80 81-85
160-165 36 S 38 M 40 L 40 L 42 XL 44 XXL 44 XXL
166-170 36 S 38 M 38 M 40 L 42 XL 44 XXL 44 XXL
171-175 36 S 36 S 38 M 38 M 40 L 42 XL 44 XXL
176-180 36 S 38 M 38 M 40 L 42 XL 44 XXL
181-185 36 S 36 S 38 M 40 L 42 XL
186-191 36 S 36 S 38 M 40 L 42 XL

 Height: centimeters \ Weight: kilograms

 

Height\Weight 50-55 56-60 61-65 66-70 71-75 76-80 81-85
160-165 36 S 38 M 40 L 40 L 42 XL 44 XXL 44 XXL
166-170 36 S 38 M 38 M 40 L 42 XL 44 XXL 44 XXL
171-175 36 S 36 S 38 M 38 M 40 L 42 XL 44 XXL
176-180 36 S 38 M 38 M 40 L 42 XL 44 XXL
181-185 36 S 36 S 38 M 40 L 42 XL
186-191 36 S 36 S 38 M 40 L 42 XL

 Height: centimeters \ Weight: kilograms

 

Height\Weight 50-55 56-60 61-65 66-70 71-75 76-80 81-85
160-165 28 30 32 33 35 35
166-170 28 30 31 33 34 35
171-175 28 30 31 32 33 34 35
176-180 28 30 31 32 33 34 35
181-185 28 30 32 33 35
186-191 30 31 32

 Height: centimeters \ Weight: kilograms