Youth Jam Crew Socks. The Youth Jam Crew Socks are built to keep kids comfortable from morning to night. Knit from ultra-soft acrylic, they offer a smooth, anti-itch feel that's easy on young feet. A midweight construction with added footbed padding helps provide comfort during school days, playtime, and everything in between. Finished with jacquard stripe detailing and an embroidered logo, these crew socks deliver a clean look that's easy to wear. 100% acrylic midweight knit sock. Comfortable ultrasoft anti-itch material. Crew height with enhanced footbed padding. Yarn dye construction with mini logo embroidery.