100 relay tech teethe relay tech tee from 100 uses strategically placed mesh panels so ventilation and airflow can keep the body dry and cool fitted with mediastash pocket with cord management for storage of phones or snacks with 100s new sports range athletes can expect premium products on and off the track featuresmoisture wicking fabric keeps you dryanti microbial treatment prevents odourslight 4 way stretch fabric for greater motionflat lock seams reduce chaffingathletic fit finished