Worked toe-up with a gusset-and-flap heel.

Finished Size
XS (S, M, L, XL)
Sock’s foot circumference: 6 (7, 8,
9, 9½)“ (15 18, 20.5, 23, 24 cm) to
be worn with about 1” (2.5 cm) negative ease.

Yarn
Light fingering weight (#0 Lace).
Shown here: Coop Knits Socks Yeah!
(75% Merino, 25% nylon; 231 yd
212 m/1¾ oz 50 g): #104 Sphene, 2 (2, 2, 3, 3) skeins.

Needles
Size U.S. 1 (2.25 mm): Your preferred configuration for small circumference in the round: DPNs, long circular for magic loop, 2 shorter circulars, set of three flexible DPNs, 8–9” (20–23 cm) circular.
Adjust needle size if necessary to obtain the correct gauge.

Notions
Stitch markers; cable needle; yarn needle.

Gauge
40 sts and 48 rnds = 4” (10 cm) in Stockinette st.