The hem of a shirt is the bottom end of the shirt, which is folded and curled to form a finished edge on the garment. It is usually defined by its shape, which can impact the visual array for tucked-in and untucked dress shirts. There are different types of hems for shirts, including:

• Straight Hem: The bottom of the shirt has been cut in a straight line, and it features 2.5" side seam vents. Straight hems are a distinguishing feature of casual shirts, and they make the shirt susceptible to wear untucked. Therefore, effortless styling is important, and wearing the shirt untucked is recommended with a straight hem.

• Rounded Hem: The most popular choice among business and business casual dress shirts, it has a 2-inch rise on each side of the shirt.

• Square Hem/Flat Hem: A hem that is cut in a straight, horizontal line, as opposed to a curved hem. It is often seen as a more casual detail and is most typical on t-shirts, Hawaiian shirts, and camp collar shirts.

To hem a shirt, you can cut the shirt 1/2 an inch longer than you want it to be, fold the hem up by 1/2 inch, and press the hem flat with an iron. If you want a nicer finish on the inside, you can serge the raw edge, but it is not necessary.