It perfectly blends warmth and strength to make a hardwearing sock yarn that can stand up to your affection and abuse. Tough Love Sock is our best-selling yarn and knits up beautifully into fine-gauge sweaters, small shawls, and socks! Knit it firmly for hard-wearing socks, knit it loosely for drapey shawls, or knit it doubled for a great worsted-weight substitute.