Industrial heathered yarn, navy and blue melange. It's a blend of wool, acrylic, and nylon, but the exact percentages are unknown. A swatch knitted in single crochet is shown in the fourth photo. This yarn has a soft texture and is easy to knit. 50g skeins, 10 skeins total. If you need a larger quantity, please contact me via the comments section and I will adjust the listing. Shipped via Yu-Yu Mercari delivery service. Thank you for looking.