Machine Wash.HIGH QUALITY:Made of high quality cotton and spandex.Soft and breathable to wear,it is stretchable,simple,durable and machine washable.Size:Fits Age 6-15 Months, sole length: 9cm Fits Age 1-3 Years, sole length: 10cm Fits Age 3-5 Years, sole length: 12cm.UNIQUE DESIGN:Cute lace design, and it will keep your baby warm with fashionable look.OCCASION:A great gift for you baby boys girls,and it can use as photography prop and costume,for casual daily wear,baby shower,birthday party,wedding party,halloween,chritmas and so on.The cute sock will keep you baby warm and fashion.ATTENTION:The tube lengths between different pairs are slightly different. 1.5CM difference between longest and shortest socks.