Measure your chest at the fullest part
Measure your waist at the natural waistline
Measure your seat at the fullest part of your hips
Measure your shoulder width from edge to edge
Measure your sleeve length from shoulder to wrist
Measure your jacket length from the base of the neck to the desired hem
Measure your inseam from crotch to ankle
Compare your measurements to the suit brand’s size chart
Use the largest measurement to determine the jacket size
Choose the jacket size based on chest measurement for standard fit
Check whether the suit is regular, slim, or classic fit
Try on the suit and check shoulder fit, sleeve length, and jacket closure
Make sure the trousers fit comfortably at the waist and seat
Alter the suit if needed for the best fit