TCA Men's & Boy's Hyperfusion Compression Shirt Short Sleeve Baselayer Lightweight and tight TCA compression fit improves muscle power and endurance Moisture wicking fabric is QuickDry and absorbs sweat from the skin keeping you dry and comfortable 3DAirMesh panels provide strategic ventilation in high heat zones Breathable fabric regulates body temperature for higher performance in all conditions Flat lock seams with four way stretch fit for full range of movement