Quick and easy guide on how to check your armhole. These alterations and checks can be applied to sleeved and sleeveless garments. My toile didn't have too much excess so there was not much to alter. Remember if you are making a sleeved garment, make sure you're not taking out all the room, because you will still need a small amount of ease. So be sure to always fit in on a person to check if it is comfortable.