Wear what the Pros wear. We've created a baseball sock that not only looks great but exceeds everything else on the market when it comes to durability, technology, and design. Using our FEEL360 technology, the Cubs Pro Crew eliminates over 99% of bacteria, quickly adapts to body temperature, and is proven to be two times more durable. This MLB on field sock has a built in cushion at the ankle which provides additional padding and protection against grounders as well as targeted lateral compression and seamless toe closures. You won't find a better baseball sock than the Cubs Pro Crew, the official sock of MLB. - Official Sock Of The MLB - Breathable Performance Mesh - Engineered Ankle Cushioning - Reinforced Heel & Toe - FEEL360 Technology