This sounded so interesting that I couldn't resist bringing some in. Check out a video of the color change by clicking here!
It's a UV color changing yarn that is white when not exposed to sunlight, but then once sunlight hits the yarn it changes into a vibrant color.
This is a DK yarn that pairs in weight with HiKoo® Simplicity, or CoBaSi DK.
35% Superwash Merino, 50% Polypropylene, 15% Nylon
Approx 91 m (100 yds) per 50 g (1.76 oz) Skein
DK Weight (#3 Light)
Suggested Knit Gauge: Approx 22-24 sts per 10 cm (4 in)
Suggested Knitting Needles: 3.5-4 mm (US 4-6)
Machine Wash Gentle Cycle
Tumble Dry Low