How to Make Your Hoodie Warmer




About: We have enough!

Step 1: Getting the Layers in Place

This is a good project that i recommend just straight copying if you're interested. But it's more just an example of some easy sewing, using things you probably already have. When you read the word "thermal" or "hoodie" here, take them as metaphor for whatever layers you're using, for whatever it is you're trying to do with your clothes.

I don't have any Before photos of this. But i doubt that matters because this isn't very tricky.

-First i put the flannel on inside-out, then put the hoodie on over it, right side out. Make sure they're both on neat and evenly.
-Put safety pins on either side of the zipper, pinning the shirts together
-Pin the cuffs of the sleeves together, being careful not to get it twisted
-Holding the shrits in place, pin the back collars together at the middle. Just one pin will do here, since the collar is also pinned in front at the zipper

-Unzip the hoodie, but leave the shirts on and pinned
-Cut the thermal down the front middle to match the hoodie zipper. Take both shirts off and keep them pinned together

Step 2: Sewing the Layers Together

Now that you can reach the collars better, it's important that they're centered when you start sewing them.  Mark the back center point on both the flannel and hoodie collar, and be sure your pin lines up. Just keep doing that, halving the sections of the collars and pinning them together at the center points, until you have a pin like every 2-3 inches around the collar.

Sew it in place. I like using this Frankensten Stitch because it accommodates strech and reduces fray. Sew around the collar, alongside the zippers, and around the cuffs of the sleeve.

Don't sew it at the bottom. At least i didn't with this one here; i thought it would alter the shape of the hoodie so i didn't try it.

Sewing around the sleeve was like a combination of 1 and 2: the seam gets sliced so that the narrower sleeve can be sewn to the wider sleeve without warping it. I sewed around the cuff but not up the slice, because i thought i'd be glad to have the extra movement

Step 3: All Done

I turned this inside out to give a better view of how everything matches up, also illustrating the point that this could be a reversible garment! Like, maybe one side could be a business suit, then you turn it inside out and there's a business-casual suit! You'd be ready for anything- what a blast.



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    10 Discussions


    3 years ago

    What an excellent tutorial! I have a hunter orange hoodie that I wear at night while walking my dogs (two of which are black) to increase our visibility, but the hoodie is too thin for mid winter. I put on an insulated vest over it, but the sleeves are still not warm enough. I was wondering if I could add a lining, and this looks like something that I could easily do!


    5 years ago on Step 3

    very cool idea - I wouldn't have thought of this but just happen to have a thermal shirt and a few sweatshirts hanging around. Thanks for sharing this. Curious what your "frankenstein" stitch looked like on the machine, so that I could see what button to push on mine. I think a plain straight stitch would not work nearly as well. I would have figured this out halfway through the project too - so thanks again!

    1 reply

    Reply 5 years ago on Step 3

    Right you are, a straight stitch would pop pretty quickly as soon as this was stretched. A zigzag stitch will accommodate that.


    Reply 6 years ago on Introduction

    That's a good question. I haven't tried it before but I don't think it would be too different.

    What I'd try is to put both on at the same time, with the lining one underneath just like it'll be in the end, then take them off at the same time so they end up inside out. Then I'd sew around the collar and sleeves like in this project, and put just a few stitches at the bottom hem at the left and right, just to keep the lining in place. That way it will fit and stay put without making the top top layer look weird. Good luck!


    8 years ago on Introduction

    thanks a lot! this'll keep me warm on cold winter nights out on the road =)

    this is pretty...... freakin EPIC! lol.... a nice instructable. I have this sweet green hoodie, but its too thin for cold weather, so ill probably give this a try. and if i ever get around to it, and get my hands on a camera, i will be sure to post some pics. thanks for this

    1 reply