The Mens Fila memory At Peak steel sneakers showcase durable synthetic uppers with slip resistant flex groove outsoles. They feature a memory foam sock liner made with Coolmax® fiber. These sneakers were tested in accordance with the applicable industry standards, including: ASTM F2913-11 and I75-C75. Plz see pics and bundle to save. I average 1 day shipping and you will get amazing customer service from a 5 Star Postmark Ambassador.