The endura fs260 pro cap is a great piece of cycling clothing accessories because people wear a helmet they don39t tend to think that they need anything underneath it but this cap will prove that having one will help you out a lot this cap has a low profile design that will fit underneath your helmet with ease and won39t hinder its performance this cycling cap has 3 panels to make sure it fits nugly around your head and is made from pre washed cotton for a comfortable feel on your head