This 100% wool yarn by KFI Luxury Collection is handpainted in glorious, unique colourways. Listed as a worsted weight by the company, it's classified as DK on Ravelry. Take from that what you will, but the recommended needle size is included here for reference. The yarn is lusciously soft, and features some remarkable effects due to having been hand painted.
Get inspired by the great projects in this yarn on Ravelry