Need a stretchy cotton yarn? Fixation Yarn from Cascade is a colorful cotton stretchy yarn, that comes in multicolors and solids. Angelika's stocks ALL the colors! This is the go-to Cotton Lycra yarn for baby wear and bikini designers. Cascade Yarns produces Fixation in a wide range of colors, brights and naturals. I've also seen it crocheted and knit up for baby caps, summer tops and of course, makes wonderful socks.