Fast 3.0 Singlet Women Size:XS The running jacket has a

The running jacket has a tight and slim fit with technical functions in the sleeves to ensure full movement

not as slim as some other models

and YKK zipper at the back with a soft protective placket behind for comfort and protection

it has mesh panels at the sides for extra ventilation

this is the one for you

Fast 3.0 Singlet Women Size:XS The running jacket has aFast 3. 0 singlet is an upgraded version that feels very comfortable. The extremely light singlet fits perfectly over your shoulders and dries quickly. It's made of comfortable and moisture transporting materials. The back is made of breathable mesh to ensure extra ventilation and excellent transportation of sweat, which makes the singlet even more comfortable to wear. We have given this singlet an upgraded look with slimmer shoulder straps, as well