T-shirt lies on not too tight, but also not as fluttered wildly (actually perfect sitting). the back and Axel zone are equipped with a permeable membrane, so that the airflow is well placed. Am now even 93km running since 2.5 rotor and the shirt; until now the quality has still taken no harm and the shirt looks like on the first day!
For those who still are undecided: strong buy recommendation!