Lightweight Microfiber fabric | Fabric Composition : 100% Micro Polyester | Jockey Air - Lightweight and breathable for unmatched experience and comfort | Smartfabric - Takes Quality and Comfort to the Next Level | StayFresh Treatment with Antimicrobial Properties to Help You Stay Fresh Throughout the Day | StayDry Treatment with Additional Evaporation Properties to Help You Stay Dry Throughout the Day | Breathable Mesh for Enhanced Cooling | Round Neck | Sleeveless | Label Free for All Day Comfort