Thanks to the very thin Flieses keeps them warm without aufztragen and fits einwandfei under the helmet. The ears are well covered and the hat sits also on long trips like a glove. Caution: If you do not ride up it is said that it is too small. We tested with our two sons and too small funktionier definitely not!
We had the cap even with several long grueling races (20km, marathon training) with a strong schwitzendnen teenager in use, it is relatively odorless and does not have to immediately into the washing machine. Meanwhile, she was once washed (gentle cycle), it is still einwandferei.
