Diesel fucks with sizes
whenyou buy a pair of levis, for instance a size W28, all the levis size 28 will fit you the same way.
for Diesel jean it depends of fabric, wash and sometimes for matching pairs fit is different. moreover some pairs in cotton will stretch (i.e. 886B) when other wash wont (74K, 8X2...)
lenght can vary according to the wash as well.
but the less acceptable IMO is that the waist is almost EVERYTIME too loose even if the jeans fit you...