Under Armour Men&rsquo;s NFL Combine Authentic Warp Speed Fitted Short Sleeve Fitted: Sits close to the skin for a streamlined fit without the squeeze of compression Smooth HeatGear fabric is durable and soft, providing chafe-free comfort for your most intense training days 4-Way Stretch fabrication improves mobility and accelerates dry time, while maintaining shape Superior Moisture Transport System keeps you cool, comfortable, and focused Full mesh back allows superior airflow dumping heat as you step up your game