Stretch Thread - Seraflex - 50wt - 142 yds

Seraflex by Mettler is an exceptionally elastic sewing thread designed specifically for stretch fabrics. Made with innovative PTT technology, Seraflex can stretch up to 65%, allowing seams to move comfortably with the fabric while maintaining strength and recovery.

Unlike traditional construction methods that rely on a zigzag or stretch stitch, Seraflex is designed for use with a straight stitch, making it especially useful when you want a clean, polished seam on knits and other stretchy fabrics. For maximum elasticity, use Seraflex as both the needle and bobbin thread with the thread tension set as loose as possible.

A versatile choice for garment sewing, Seraflex works beautifully for knit clothing, activewear, swimwear, underwear, lingerie, and other projects where the seams need to stretch along with the fabric. Available in 36 colors, making it easy to coordinate your thread with your project.

Thread Weight: 50wt
Length: 142 yards per spool

For best results, use Seraflex in both the needle and bobbin and sew with a straight stitch and reduced thread tension.

Sewing Studio Fabrics is an Asheville fabric store dedicated to high-quality apparel fabrics for garment sewing. Whether you visit our Asheville sewing store in person or shop online, we focus on beautiful fabrics that help makers create garments meant to be worn and loved for years.