Run Singlet Men Advance The extra high collar is

The extra high collar is added for extra protection against the elements

a chin guard

It also has reflective details on key areas

This means that the tights naturally follow your movements

providing better aerodynamics

Run Singlet Men Advance The extra high collar isThe Run singlet is a great running singlet for extra hot days and long training sessions. The singlet is light and comfortable to wear, and is made in a breathable material that has good moisture transfer. There are also ventilating panels at the sides which provide extra ventilation. The singlet is also suitable for activities such as CrossFit, spinning and athletics. This product has a tight fit. It will fit close to body, but not cling to it