Pinwheel sock pattern from "Knit One Below" by Elise Duvekot. Posted on Knitterly Anne's Musings. There is a link to the pattern book. Interesting stitch similar to the Brioche Stitch.
Ravelry: Lily of the valley socks pattern by Titta Järvensivu
16 Adorable Knitted Christmas Socks and Gloves With Free Patterns - DIY & Crafts