What is the right length of the Jacket for me??

This question we been almost every single day that what is the best length for a person.

Normally the answer is nowadays if you follow fashion than any length is fine, but if you follow the classic rules some say it should be exactly touching the thumb of your hand.

But in another way, this rule doesn't follow to all persons. As everybody knows that the size of every individual is not the same, so the length also is also not the same.

10 out of 100 have long arms and if we follow that rule to touching the thumb, the jackets going to be-long.