Shown with a cast-on count of 25 stitches.  

• Row 1 (RS): K25.
• Row 2: K25.
• Row 3: K11, yo, sl1-k2tog-psso, yo, k11.
• Rows 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, and 44: Purl.
• Row 5: Kfb, k2, k2tog, yo, k1, yo, ssk, k2, k2tog, yo, k1, yo, ssk, k2, k2tog, yo, k1, yo, ssk, k2, kfb (27 sts).
• Row 7: K3, k2tog, yo, k2tog, yo, k1, yo, ssk, k1, k2tog, yo, k1, yo, ssk, k1, k2tog, yo, k1, yo, ssk, yo, ssk, k3.
• Row 9: K2, k2tog, yo, k2tog, yo, k1, yo, ssk, k1, k2tog, yo, k2tog, yo, k1, yo, ssk, k1, k2tog, yo, k1, yo, ssk, yo, ssk, k2.
• Row 11: Kfb, k1, k2tog, yo, k2tog, yo, k3, k2tog, yo, k2tog, yo, k1, yo, ssk, yo, ssk, k3, yo, ssk, yo, ssk, k1, kfb (29 sts).
• Row 13: K3, ssk, yo, ssk, yo, k3, yo, k2tog, yo, k2tog, k1, ssk, yo, ssk, yo, k3, yo, k2tog, yo, k2tog, k3.
• Row 15: K4, ssk, yo, ssk, yo, k1, yo, k2tog, yo, k2tog, k3, ssk, yo, ssk, yo, k1, yo, k2tog, yo, k2tog, k4.
• Row 17: Kfb, k4, ssk, yo, ssk, yo, k2tog, yo, k7, yo, ssk, yo, k2tog, yo, k2tog, k4, kfb (31 sts).
• Row 19: K10, yo, ssk, yo, ssk, k3, k2tog, yo, k2tog, yo, k10.
• Row 21: K11, yo, ssk, yo, ssk, k1, k2tog, yo, k2tog, yo, k11.
• Row 23: Kfb, k3, k2tog, yo, k1, yo, ssk, k2, yo, ssk, yo, ssk, k1, k2tog, yo, k2tog, yo, k2, k2tog, yo, k1, yo, ssk, k3, kfb (33 sts).
• Row 25: K4, k2tog, yo, k2tog, yo, k2tog, yo, k1, yo, ssk, yo, ssk, k3, k2tog, yo, k2tog, yo, k1, yo, ssk, yo, ssk, yo, ssk, k4.
• Row 27: K3, k2tog, yo, k2tog, yo, k2tog, yo, k2, yo, k2tog, yo, k2tog, k3, ssk, yo, ssk, yo, k2, yo, ssk, yo, ssk, yo, ssk, k3.
• Row 29: Kfb, k2, k2tog, yo, k2tog, yo, k3, yo, k2tog, yo, k2tog, k5, ssk, yo, ssk, yo, k3, yo, ssk, yo, ssk, k2, kfb (35 sts).
• Row 31: K4, ssk, yo, ssk, yo, k3, yo, k2tog, yo, k2tog, k5, ssk, yo, ssk, yo, k3, yo, k2tog, yo, k2tog, k4.
• Row 33: K5, ssk, yo, ssk, yo, k1, yo, k2tog, yo, k2tog, k7, ssk, yo, ssk, yo, k1, yo, k2tog, yo, k2tog, k5.
• Row 35: Kfb, k5, ssk, yo, ssk, yo, k2tog, yo, k11, yo, ssk, yo, k2tog, yo, k2tog, k5, kfb (37 sts).
• Row 37: K9, yo, ssk, yo, ssk, k11, k2tog, yo, k2tog, yo, k9.
• Row 39: K10, yo, ssk, yo, ssk, k9, k2tog, yo, k2tog, yo, k10.
• Row 41: Kfb, k2, k2tog, yo, k1, yo, ssk, k2, yo, ssk, yo, ssk, k9, k2tog, yo, k2tog, yo, k2, k2tog, yo, k1, yo, ssk, k2, kfb (39 sts).
• Row 43: K3, k2tog, yo, k2tog, yo, k2tog, yo, k1, yo, ssk, yo, ssk, k11, k2tog, yo, k2tog, yo, k1, yo, ssk, yo, ssk, yo, ssk, k3.