Introduction
High-stretch sports clothing, such as fitness or running leggings, have flat seams ("flatlock" seams) that can get damaged over time. These can be repaired with a sewing machine which has a Zig-Zag stitching function, in order to keep the seam's elasticity. In this guide we'll show you how!
Tools
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            Locate the damage on your item. 
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            This is often in a high-stretch area of the flatlock stitching. 
 
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            Cut away and broken thread in the area to repair. 
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            Adjust the sewing machine to the Zig-Zag stitch setting, and with the correct width (it should match your flatlock stitching width). 
 
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            Place the garment underneath the sewing machine and depress the foot. 
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            Carefully stitch all along the broken seam. 
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            Take care: thin and stretchy fabric can be hard to work with. Take your time! 
 
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            🛠️🏆👏 Congratulations! The repair is complete, and you're ready to go! 
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            Good to know: Because you used the Zig-Zag stitching, your repair will remain stretchable and comfy for your next run or yoga session! 
 
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In need of another repair? Don't worry! Check out our other guides to find quick solutions for your favourite clothing, footwear and equipment!