Do any of you know how this season's Margiela slim fit jeans are sized? I'm generally a size 30 in trousers, 31 in slim fit pants like Unis, W+H, Epaulet Chinos and don't know whether a 46 or 48 would be best. Is the waist a bit vanity sized or are they true to tagged sized generally? If not this season, any one with other season's experiences would be appreciated too. Thanks in advance, guys.