Belts size guide

*I measure my waist at the point where I wear my belt, using a tape measure.
* or I measure a belt that I wear from the end of the buckle to the most used hole (usually the middle hole)

Correspondence table
The most reliable solution is to measure your waistline. 

Belt size (= my waist size)	Pants size
80 cm	36
85 cm	38
90 cm	40
95 cm	42
100 cm	44
105 cm	46
110 cm	48/50
120 cm	52/54

 

Boxer shorts size guide

Bloomer size guide

Size	Trousers size FR	Hip size
XS	34-36	85-90 cm
S	36-38	91-94 cm
M	38-40	95-98 cm
L	40-42	99-102 cm
XL	42-44	103-106 cm