For baby’s first socks only the best and softest quality sock yarn will do: Baby Smiles My first REGIA is an extra soft version of the popular and durable REGIA sock yarn. Best of all, it comes in a wonderful range of solid and variegated tones, so you can have fun picking colors for these simple stockinette socks with contrasting heels, toes and ribbing. In three sizes for babies 3 to 9 months old.