Product available with different options Cotton HCJ kids junior hockey socks HCJ-306XS CZK160 HCJ is a thinner sock containing merino wool, which is a unique natural material that generates heat when wet, and thus provides excellent thermal insulation and moisture removing properties. A simple instep bond improves foot ventilation and overall heat balance. Material: 37% cotton, 42% Siltex, 16% polyamide, 5% Lycra View