Elastic · 142yds/130m · 100% PTT · Stretches up to 65%

Mettler Seraflex Elastic Thread 7840-1000 Eggshell is the go-to choice for sewing stretch and knit fabrics. Made from innovative PTT fibre, it stretches up to 65% and recovers fully — keeping seams comfortable and flexible through every movement.

Key Features

• Stretches up to 65% — ideal for stretch fabrics, knits, and activewear
• 142yds/130m per spool
• 100% PTT (Polytrimethyleneterephthalate) — elastic recovery with smooth stitch formation
• Use as needle and bobbin thread with loose tension for maximum elasticity
• Recommended for straight stitches only
• Compatible with domestic sewing machines

Recommended Uses

• Stretch and knit fabrics — women’s, men’s, and children’s clothing
• Sportswear, activewear, and outdoor apparel
• Underwear and lingerie
• Any application requiring seam elasticity

Needle Recommendations

• 70/10 or 80/12 Stretch or Jersey Needle recommended
• Use the loosest possible thread tension for best results