the best thing I bought in recent years to narrow good-feeling polo shirts ... looks hammer from top quality and if one is muscular as I see the simple hammer good! I've all the other colors also ordered .. depending on body building one might take 1 size bigger the so possibly something could go with the times or so and then you on the safe side wäre..aber currently it fits perfectly! am 1.90 cm tall 90 kilos top athletic and muscular with zero mass thus defined. Bulkier athletes rather one get bigger!