An unusual feature of this sock is the stair-step heel flap. A gusset and a spiral toe are also used.

US size 0 are used for the cuff ribbing, US size 3 are used for the colorwork and US size 2 are used for everything else in st st.

The pattern calls for 2 balls of the main color and 1 of the contrast color, except the largest size which takes 2 balls of each color.

The circumference of the 3 sizes are: 7 1/2”, 9”, 10 1/2”.