pls measure the children foot length so that you can choose the correct size (manual measurement, please allow 1-2cm error oh）Name:Children’s socksmaterial: CottonSize S for 1-3 years，Socks bottom length 12cm，Fit foot length 11-13cmSize M for 3-5 years，Socks bottom length 14cm，Fit foot length 14-16cm Size L for 6-8 years，Socks bottom length 16cm，Fit foot length 16-18cmSize XL for 9-12 years，Socks bottom length 18cm，Fit foot length 19-22cm

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