Gabby Brown wrote 3 shoulder adjustment posts for Sewcialists that you simply must read to identify and fit this area of your clothes.

The shoulder is arguably the most fit critical area in garments made for the upper half of the body. Problems stemming from the shoulder affect overall garment balance, can cause draglines through the entire garment, and can cause great discomfort while wearing.

The next podcast will have more details for fitting shoulders that Gabby details in 2 posts for Sewcialists. Make sure you go back and listen to all of Gabby's podcasts for great fitting advice. Gabby's posts list reputable information sources she has vetted so you are reading good information.