MTL Skyfire - Women'sBreathable Air can flow in and out for ventilation. Moisture Wicking Moisture from sweat is wicked away efficiently and effectively. Tear Resistant Durable upper will protect it from forces placed against it. Inner Mesh Extremely breathable inner mesh lining encourages air to flow in and out. Firm Upper Protection Firm material surrounding vulnerable areas of the feet will provide protection. Moulded Heel Counter Improves rearfoot stability.