Fast 3.0 Singlet Men Size:XL There are also ventilation panels

There are also ventilation panels on the back and under the arms

This model is designed for running

•    Tight fit

a storm flap

A lightweight running jacket for men which weighs only 127 grams in size L

Fast 3.0 Singlet Men Size:XL There are also ventilation panelsFast 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