Fast 3.0 Singlet Men Jacket which means it sits loosely

which means it sits loosely and is not supposed to feel restrictive in any way

It also has three smaller pockets on the back and a reflective area

The shell fabric is in recycled polyester

it will have a cooling effect against strong heat

It can easily be combined with compression socks

Fast 3.0 Singlet Men Jacket which means it sits looselyFast 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