Although there is no tag, these items are new and unused. All three pairs are 15-20cm. The back two pairs have mesh on the instep. There is no non-slip grip on the soles. The light blue socks have a small fray on the heel (photo 7). Please refrain from purchasing if you are concerned. Please purchase only if you understand that these items are stored at home. I will do a final check before shipping and will contact you if there are any defects such as moth-eaten holes. I will ship via Yu-Packet Post. Gender...Boy