With this simple refashion tutorial and a sweater, you can learn how to lengthen sleeves of a jacket or coat! This would be a great gift for someone with long arms!
I think I have monkey arms because ready-to-wear jacket sleeves are never long enough for me. I either have to make my own jackets, or I can use this sewing tutorial to simply lengthen the sleeves.
At first I thought this would bother me if I wasn’t wearing the same color sweater underneath the jacket. I’m usually wearing a bunch of layers underneath, and I don’t think anybody would be able to tell which sweater is peaking out.
I really need to add some sweater sleeves to this rain jacket I made a couple of years ago.
It’s unfortunate that you can’t actually make the sleeves longer on a jacket, but this refashion can add length. You can choose a matching sweater for a streamlined look where the sweater blends in, or you can choose a contrasting sweater for a nice pop at the wrists. It’s important that you choose something you’ll love!
This trick would also help with cuffs that are rough and might chafe your wrists. If your family member complains about their jacket cuffs irritating them, then you could add some sweater cuffs for a soft alternative.
- Matching or contrasting sweater you don’t mind cutting
- Sewing supplies
How to Lengthen Sleeves of a Jacket or a coat
1. Watch the video and then read the tutorial below.
2. Measure the amount you need from your wrist to the top of the cuff.
If you jacket doesn’t have a cuff then measure from the top of the placket (where the buttons are). In my photo below I was adding the length of the placket to the length I needed past the hem of the sleeve.
3. Use that measurement to cut the sleeves of a sweater.
4. Cut both sweater cuffs the same measurement.
5. Thread a hand needle with matching thread. Use two threads for extra strength.
6. Serge or zigzag the raw edges. The olive sweater fabric was a really open weave so I opted not to zigzag or serge. Instead I put my hand stitches closer together.
7. Turn the jacket sleeve right side in, and turn the sweater cuff right side in. Place the cuff around the jacket sleeve and the place where you measured before. The sweater sleeve will probably have to be stretched out to fit around the coat sleeve. Line up the seam of the sweater cuff with the seam of the jacket.
8. Hand sew the sweater to the jacket sleeve. If there is lining then sew the sweater cuffs to the lining. If there is no lining then sew the sweater cuffs to the cuff. Do you best to sew an invisible stitch by only catching a couple of threads on the jacket.
9. Tie the thread off in a square knot. I like to sew each side individually to help prevent the thread unraveling all the way.
My brother gave me this idea, and I did it to one of his jackets. Then I did the same thing to a jacket that I wore while I was pregnant. I had thrifted this jacket and just needed a little bit of length, and this trick was the perfect solution.
This is a version I did for my brother. The black on black looks really nice. He only needed a small amount to lengthen his jacket sleeves.
If you lengthen a jacket using this DIY tutorial, I’d love to see! Please share it on social media with the hashtag #heatherhandmade and tag me!