Fast 3.0 Singlet Men Size:3XL the pants have a ventilation

the pants have a ventilation area under the knee

and running

The shirt is also longer in the back than in front

The O-shirt is technical and made from a durable fabric which makes it highly suitable for tough runs in rough terrain

purposefully placed

Fast 3.0 Singlet Men Size:3XL the pants have a ventilationFast 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