Unique performance design with high-impact colors, developed to interact with Mizuno Lightning RX2 Volleyball shoes. 55% Polyester/30% Cotton/13% Nylon/2% Spandex technical blend. Right and left specific design enhances performance and comfort. Padded heel and forefoot. Cooling mesh along Achilles heel. Mizuno “Runbird” logo knit in on lateral side of ankle and top of foot. Sold in single pairs.