The socks in the top row look cute when folded over. 7-9cm. I think I bought them at GAP, but I'm not sure. The socks in the bottom row are 9-14cm. The pink ones are from GAP, and I forgot where I bought the apple ones. Baby sock size guide (Japan) • 7-9cm: Newborn - 3 months • 9-11cm: 3-6 months • 11-13cm: 6-12 months • 13-15cm: 1-2 years old