The Journal
How to turn an old sweatshirt into an oversized sweatshirt
31 December 2025
Got an old sweatshirt in your wardrobe and want to turn it into a trendy oversized sweatshirt? Look no further! Here is a simple guide to help you give your favourite garment a second life while embracing a relaxed, urban look.
What You Will Need
- An old sweatshirt
- Dressmaking scissors
- A sewing machine (or a needle and thread)
- A ruler or tape measure
- Pins
- A pencil or tailor’s chalk
Step 1: Preparation
Start by turning your sweatshirt inside out so you can work on the reverse side. Lay it on a flat surface and smooth it out so there are no creases. Use your ruler or tape measure to work out how many centimetres you want to add to the width and the sleeves to achieve that oversized effect.
Step 2: Cutting the Extensions
Using the dressmaking scissors, cut along the side seams of the sweatshirt and along the sleeves. This will let you add extra fabric to widen the sweatshirt. Then cut strips of fabric from another garment or from a piece of fabric of your choice. Make sure these strips are the same length as the cuts you have made.
Step 3: Assembly
Pin the fabric strips along the cuts, making sure they are even on both sides. Use your sewing machine (or a needle and thread) to sew the strips in place. Make your seams strong so that your new oversized sweatshirt lasts.
Step 4: Finishing Touches
Once the strips are sewn on, try your sweatshirt on to see the result. Make any adjustments needed by taking in or letting out the sleeves or body further to suit your preference. Finish off by re-sewing the hems along the new seams for a clean, professional look.
Embrace the Oversized Style
Congratulations! You have just turned your old sweatshirt into a trendy oversized sweatshirt that is sure to bring a modern touch to your wardrobe. Wear it with jeans, comfy trousers or even a skirt for a fashionable, relaxed urban look. With your new oversized sweatshirt, all that is left to do is head out and explore the city!
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