If you’ve been working with yarn awhile, you are probably aware that yarns come in different weights and what that means for your projects. But if you don’t, allow us to demystify yarn weights! Here’s a quick primer on what you need to know about yarn weights and choosing yarns for your knitting projects. What are yarn weights in knitting? Yarn weight is, at its most basic, the thickness of the yarn strand. Yarn comes in a variety of weights beginning with lace weight (which is very thin and fine), then fingering weight (which is slightly thicker), sport weight (even thicker), DK weight, worsted weight, and on to Aran/heavy ...