Sport weight yarn, sometimes classified as Baby weight, is the 2nd yarn weight category by the Craft Yarn Council. This versatile weight makes for warm shawls, classic sweaters, and cushy socks. Best used with a 3.50 - 4.50 mm crochet hook, and knit on 3.25-3.75 mm (US 3 to 5) needles, Sport weight measures anywhere from 16 to 20 stitches per 10 cm. We have a wide variety of styles, colours, and fibres for this versatile weight, perfect for any project you want to cast on next!