Size--------Length of trousers-------the waist---------Trousers mouth
S-----------------------88------------------71------------------30
M----------------------89------------------75------------------31
L-----------------------90------------------82------------------32
XL----------------------91------------------85------------------33
2XL--------------------92------------------91------------------34
3XL--------------------93------------------95------------------35
4XL--------------------94------------------105-----------------36