Yarns come in many thicknesses or weights from fine to thick : lace , fingering , sock , sport , double-knit ( or DK ) , worsted , aran , bulky , and super-bulky . Some of the names for the various weights of yarn from finest to thickest are called lace , fingering , sport , double-knit ( or DK ) , worsted , aran ( or heavy worsted ) , bulky , and super-bulky .