Korean baby fall/winter non-slip wool socks set (1 set of 3 pairs)

Korean baby fall/winter non-slip wool socks set (1 set of 3 pairs) The material has passed the Korean government quality certification (KC), 45% wool, 50% nylon, 5% cotton, not only the bottom is non-slip Silicone, the material is comfortable and soft with wool but also keeps warm, and it is as cute as any peekaboo clothing:) Size Chart (calculated based on the size of the foot): Size 2: 100-120 mm Size 3: 120-140 mm Size 4: 140-160 mm