The Under Armour Twister Crew Sock is designed with the athlete in mind. Features include: Constructed from UA's signature Moisture Transport to wick moisture and accelerate evaporation; Embedded arch support to help reduce foot fatigue; ArmourStretch 4-way stretch for comfort and a perfect fit. ArmourBlock helps prevent the growth of odor-causing bacteria. Sold as an individual pair 95% polyester/3% spandex/2% nylon. Check out our lacrosse socks today.