The FiveFingers Speed is designed for the casual wearer who likes the look and feel of a vintage running shoe. These shoes have a traditional lacing system, which allows them to fit a variety of foot shapes. Based on the very popular FiveFingers Bikila design, the shoes are incredibly comfortable and work well for a variety of day-to-day activities. They have a 4mm rubber outsole and a 2mm EVA insole to provide plenty of foot protection.