Boston Red Sox Socks - Red/Navy 2-Pack.  Acrylic Blend  A style suited for all,  Officially licensed and built for the fan - from the couch to the big games, and everything in between we’ve got the perfect pair for YOU. cushioning in the toe and heel and breathable support through instep and foot. Constructed to last wear after wear and wash after wash. Knit with an ethically sourced acrylic blend of materials. Crew length, hits the leg at midcalf. Foot forming with lightweight comfort, Versatile for everyday wear and active lifestyles, Youth - Fits Youth Sizes 13 - 5, Medium - Fits Men’s 5 - 8, Women’s 7 - 9, Large - Fits Men’s 9 - 13, Women’s 10 - 12