You never know. My boyfriend has one Stephan Schneider cardigan. He is 185 cm long and slim. He needs 7. My advice is "take always the larger size"". By the way. I´ve just boought a great Stephan Schneider dress (SS12 summer collection). It is grey and very nice. There were some great prices (145 € - VAT) on mens shirts too (if you guys are interested in). It is a secret sale. To see the discounts you have to register. I heard that Acolyth e-store is going to have large mens collection for the winter coming Scarfs, cardigans, jackets, shirts etc.