This entails taking old clothing from your wardrobe or thrift stores and changing them into new fashion. You can consider refashioning that your old coat instead of discarding it and giving it a stylish appearance. This simple project would not stress you at all and you can complete it within few days.
The first stage
Measure around the shoulder seam down to the sleeve; and mark one inch with your tailor’s chalk or air erasable pen.
The second stage
This exercise should be repeated for the other part of the shoulder and sleeve.
The third stage
You can follow the one-inch marks and cut off the sleeves carefully. If your trench coat is not lined it is a very simple job. However, if it is lined you need to detach or remove the lining from the fabric before cutting off the sleeve. It will also make it easier for you to fold the edges and sew.
The fourth stage
Pin the folded edges inside the coat. Remember you need to fold the edges about ½ inches before pinning it. However, if you notice an excess fabric coming out then you need to hide it under the arm where no one will see it.
The fifth stage
Does your coat have lining? Then you can sew the folded edges onto the lining without eyes noticing the stitches. Moreover, if your coat does not have lining, you could sew the edges onto the inner of the coat using invisible stitching, magic hemming tape, or the liquid stitch. In addition, the way you will sew your coat depends on the structure it was made. Repeat step 5 for the other sleeve.
The sixth stage
Iron your coat especially the mended sleeves and there you have your neat and good-looking trench coat.