The base of a jacket is called the hem. It is the bottom of the jacket, all the way around the entire jacket. The hem can be made of a variety of materials, such as fabric, leather, or fur. It can be finished in a variety of ways, such as serging, hemming, or binding.

The hem of a jacket is important for a few reasons. First, it helps to keep the jacket in place and prevents it from riding up. Second, it can help to protect the jacket from wear and tear. Third, it can add a decorative touch to the jacket.

The hem of a jacket can be found in a variety of places. It can be found at the bottom of the sleeves, the bottom of the body, and the bottom of the collar. The hem can be sewn in place or it can be attached with snaps, buttons, or zippers.

If you are looking for a new jacket, be sure to pay attention to the hem. The hem is an important part of the jacket and it can make a big difference in the overall look and feel of the jacket.