Taken from Sockupied: "These socks are designed to go both ways. Knitting top-down will result in chevrons that point down toward the toe, while knitting toe-up will result in chevrons that point toward the cuff."
This pattern is from Sockupied, pg 19 - Caret & Chevron Socks.
Size US 1.5 double point needles (or size needed to obtain gauge), stitch markers, and a tapestry needle are required but not included.