Moisture management:very ventilated knit, particularly on the top of the foot.Stability:Elastic strip over the top of the foot arch to hold the sock in place.User comfort:soft feel thanks to majority cotton composition Majority cotton thread: This natural fibre is good at absorbing perspiration.Coupled with a well-ventilated knit on the upper foot, they provide perfect moisture management for running.The cotton also stops the foot from slipping while running. 3-Pack: This model is sold in a pack of 3 socks.