Lion Brand DIY Glow Yarn. It glows! This may look like ordinary white yarn, but don't be fooled! When the lights go down, DIY Glow Natural yarn turns up! This 100% polyester yarn in a classic worsted weight is perfect for fibre artists of all skills and ages. Make glow-in-the-dark hats, scarves, and cowls for nighttime adventures, or add fun trims to costumes. Shop the complete Lion Brand collection, including Lion Brand DIY Glow Yarn now and Earn Loyalty Reward Points on all purchases. FREE Delivery options also available.