See photo's for approximate sizes and colours. These socks feel like cotton but I am not 100% sure of blend as the writing on the box is in Chinese.
bisoo Green Cotton School Socks for Boys, Girls - SET of 5 Pairs of High Socks - Oeko‑Tex Certified - School, School Uniform - Size 24-27 (UK 6-7.5) Green
bisoo Green Cotton School Socks for Boys, Girls - SET of 5 Pairs of High Socks - Oeko‑Tex Certified - School, School Uniform - Size 28-31 (UK 8-10.5) Green
bisoo Burgundy Cotton School Socks for Boys, Girls - SET of 5 Pairs of High Socks - Oeko‑Tex Certified - School, School Uniform - Size 36-38 (UK 2-3.5) Burgundy
bisoo Burgundy Cotton School Socks for Boys, Girls - SET of 5 Pairs of High Socks - Oeko‑Tex Certified - School, School Uniform - Size 24-27 (UK 6-7.5) Burgundy
5 pairs of Animals & Stars Baby Boys Socks - Variety of Sizes