Shown with a cast-on count of 40 stitches.  

• Rows 1 and 11 (RS): *K8, k2tog, yo, yo, ssk, k8, repeat from *.
• Rows 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, and 24: Purl.
• Row 3: *K5, yo, k1, yo, k2tog, k2tog, ssk, ssk, yo, k1, yo, k5, repeat from *.
• Row 5: *K3, yo, k5, k2tog, ssk, k5, yo, k3, repeat from *.
• Row 7: *K8, yo, k2tog, ssk, yo, k8, repeat from *.
• Row 9: *K1, yo, k7, k2tog, ssk, k7, yo, k1, repeat from *.
• Row 13: *K3, [k2tog] twice, yo, k1, yo, k4, yo, k1, yo, [ssk] twice, k3, repeat from *.
• Row 15: *K2, k2tog, yo, k12, yo, ssk, k2, repeat from *.
• Row 17: *K1, k2tog, yo, k14, yo, ssk, k1, repeat from *.
• Row 19: *K7, k2tog, yo, k2, yo, ssk, k7, repeat from *.
• Row 21: *Yo, ssk, k2tog, k2tog, yo, k1, yo, k6, yo, k1, yo, ssk, ssk, k2tog, yo, repeat from *.
• Row 23: *K2tog, yo, k16, yo, ssk, repeat from *.