When sewing with denim fabric, because of its thick seams you need a thicker needle of size 14 or 16, heavy-duty thread and adjust your sewing machine to a longer stitch length of 3-4mm
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How to Sew Jeans - Everything You Need to Know - Bethany Lynne Makes
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How to Sew Jeans - Everything You Need to Know - Bethany Lynne Makes