The Iso-Chill fabric helps dissipate body heat, making it cool to the touch. The 4-Way Stretch technology allows for better movement in every direction. Iso-Chill mesh back panel for better ventilation where you need it.  Model:  Pjt Rock Colour: Black Pattern: with print Fit: compression Neckline: round Sleeve: sleeveless Technology: 4-Way Stretch, HeatGear - Highly breathable material that wicks away sweat. It will keep you drier and cooler than ever before. Products made of this material are designed for temperatures between +23°C to +37°C. , Iso-Chill - Specially designed fibers that are flat to the skin, evenly disperse body heat and provide instant cooling. The added titanium dioxide absorbs UV rays and quickly dissipates heat away from the body. Fabric: 77% nylon, 23% elastane Material Type: Synthetic