Boston Red Sox 2018 World Series Champs Stance Socks - Crew - Red. Official Sock Of The MLB, Breathable Performance Mesh, Engineered Ankle Cushioning, Reinforced Heel & Toe, FEEL360 Technology. Machine Wash in 40 °C / 104 °F., Avoid Bleaching or Ironing the socks., Socks will last longer if you keep them out of the dryer.