Merino Wool Crew Socks for Baby - Natural with Oatmeal Stripes Made in New Zealand Fabric: 60% Merino Wool, 37% Nylon, 3% Elastane Care: Gentle wash in lukewarm water. Hang dry. Soft, cozy, and beautifully designed, the Matilda socks are crafted from high-quality merino wool to keep your little one's feet warm in winter and cool in summer. Merino wool naturally regulates body temperature, offering year-round comfort and breathability.Lamington socks are a favorite for their softness, stretch, and ability to stay on little feet. Sizing Guide (Measurements are flat and un-stretched, heel to toe) NB–3 months: 3.5 in / 9 cm 3–9 months: 4 in / 10 cm 1–2 years: 4.75 in / 12 cm 2–4 years: 5.5 in / 14 cm 4–6 years: 6 in / 15.5 cm Please Note: If your baby is over 9 months, we recommend sizing up to 1–2 years. These sizes are guidelines only and may vary depending on your child.