The yarn is Peacock Sock by Unplanned Peacock, a super soft and springy fingering weight yarn. The color variations are absolutely beautiful in rich and vibrant purples, and I think it pairs really well with the lace patterns.
I love lace knitting, but don't have much opportunity to wear my lace shawls. They seem so fancy for everyday life and even when I go out sometimes it seems like keeping a shawl on my shoulders would be inconvenient. Hopefully I will find more use for a shrug!
See the pattern page here for the particulars. Happy Knitting!