Using measure mothed below,First measure your actual body cirumference:Chest Bell Pants waist Hip four size,then choose standard size in size chart, you need to add at least 2.5-3inch bigger than your actual body chest bell hip cirumference without ourtwear.
2.5-3inch is a sport room,if you do not add sport room,this suit is too tight and can not move. slim fit suit:body chest bell hip add 2.5-3inch.regular fit suit:body chest bell hip add 3.5inch-4.5inch.
For example, Your body chest measurement is 41", you add extra room 3" to jacket chest, this finished jacket is 44" in chest.your belly measurement is 38",you add extra room 3" to belly measurement, then this finished jacket is 41" in belly, your hip is 41",then you add 3" to jacket bottom, this finished jacket is 43" in bottom, then choose jacket size 42S 42R 42l follow your height.
If your belly measurement is dramatically smaller or bigger, then we recomment to choose our custom made service for the perfect fit.
If you're unsure about what size to order.we are always on hand to help via email at ybl@yoosuitan.com