Fast 3.0 Singlet Men Size:M The vest is made of

The vest is made of durable

The material is also breathing

has good ventilation and is very flexible and comfortable

This model has a mix of microfiber materials and thoughtfully placed panels in 4-way stretch

Fast 3.0 Singlet Men Size:M The vest is made ofFast 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