Fast 3.0 Singlet Men Size:L the main material is elastic

the main material is elastic yet comfortable

meaning it is supposed to sit loosely and not feel restrictive in any way

This is a classic race shirt with an ergonomic fit

this shirt is quick-drying and breathing

Fast 3.0 Singlet Men Size:L the main material is elasticFast 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