What does a 42'' jacket size mean for men?

Question

Thank you!

Answer 1

It is a coat size. When buying a coat measure your chest at its biggest point with your arms held out (helps if someone else does it) then add 2 to that number and poof you have a coat size. Some guys with really muscular arms may need to add up to 4 to the measurement.

so a size 42 = chest of 40"

Answer 2

That reflects your chest size in inches.

Answer 3

its the measurement around the widest part of the mans chest.