Things You'll Need:
- Sewing machine
- Sewing machine needle for knit fabrics
- Thread
- Pins
- Invisible-ink pen
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Step 1
Put on your T-shirt and pin the parts you wish to adapt. If you wish to make the T-shirt narrower, pin up the sides. If the shirt needs to be narrower all the way up, pin up the sleeves as well until it appears to be fitted.
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Step 2
With the invisible-ink pen, mark on the shirt where you've pinned.
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Step 3
Unpin the shirt and take it off.
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Step 4
Lay the shirt down and pin along the marks, trying to maintain a straight and natural seam. Keep the seams even. For example, when pinning, keep your shirt flat even after the pins are inserted. Also, when pinning any part of the sleeve, make sure the armpit seam stays in place.
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Step 5
Sew along your marks, and try the shirt on.














