The versatile serger thread! 100 % polyester, staple spun. ASPOLOCK is the all-rounder among serging threads and is suitable for all classic serging applications. It can be used across the entire serger range and offers excellent sewability with a fine textile appearance. Smooth, clean seams can be achieved on all fabrics. ASPOLOCK features high tensile strength and abrasion resistance, is easy-care, shrink-free, and colorfast—even at high washing temperatures and under light exposure.