Measure the waist band (your piece of elastic) and pin- elastic is forgiving so it doesn't have to be perfect.Line up the waist band-stretch it out and sew with a straight stitch. Maxwell sews the sides first, then sews the leg pieces next, and lastly the waist band. Sew slowly to make sure there's no bunching. Once your done sewing just cut off any loose threads and you've got a some new undies!
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