How to sew a visible bias binding | Neckline, sleeve & hem tutorial
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How to sew a visible bias binding | Neckline, sleeve & hem tutorial
Visible bias binding is a beautiful way to finish necklines, sleeve hems, and garment edges — it neatly encloses raw edges while adding a decorative pop of color or contrast. Beginner-friendly and versatile, this technique works equally well on curved and straight seams.
Materials needed
- Bias binding (cut 20 cm longer than your edge)
- Matching or contrasting thread
- Iron and pins or clips
- Sewing machine
Step-by-step instructions
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Cut and prepare the bias strip
Cut your bias binding about 20 cm longer than the edge you’ll be finishing — the extra length allows you to join the ends cleanly. Open one fold of the bias and align its raw edge with the raw edge of your garment, right sides together.
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Pin and sew the bias strip
Start pinning 10 cm from the beginning of the strip and stop 10 cm before the end, leaving both tails free for joining. Sew using a seam allowance equal to one quarter of the total unfolded width — for a 4 cm wide bias (2 cm finished), use a 0.5 cm seam allowance.
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Join the ends
Stop sewing 5–6 cm before the starting point. Fold the left end of the bias vertically, place the right end over it at a right angle with right sides together, pin, and sew the overlap. Trim the seam allowance, press it open, then finish stitching the remaining gap to complete the binding.
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Fold and finish the binding
Fold the bias over the seam and wrap it to the wrong side of the garment, enclosing the raw edge completely. The binding should sit flat and even all the way around. Pin or clip in place and press firmly to set the fold before stitching.
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Stitch in place
With the wrong side of the garment facing you, topstitch close to the folded edge of the bias — approximately 0.15 cm from the edge. Use your first stitch line as a guide to keep the spacing consistent. Sew slowly and check regularly that the binding is caught evenly on both sides.
Pro tip
Visible bias binding is a great opportunity to add a design detail — try a contrasting color or print to highlight the shape of a neckline or hem. For curved edges, ease the bias gently as you pin to avoid puckering. Always press at each step for a crisp, professional result that lies flat and stays in shape after washing.
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