Under Armour men’s short-sleeved athletic shirts are built to help you smash your PR. Whether you’re hitting the gym, running a marathon, or playing a pick-up game of basketball, our shirts provide maximum comfort and performance. They’re built with breathable cotton blends and performance fabrics to help keep you cool and dry during intense workouts.

Our versatile gym T-shirts, training shirts, and workout shirts come in a variety of styles to match your needs and preferences. Look for short sleeve athletic shirts with chafing-resistant seams. Our relaxed-fit training shirts offer superior ventilation, while our compression shirts provide muscle support and won’t snag on workout equipment.

Look for short-sleeved athletic shirts with UA RUSH™ to power you with infrared technology that reflects your body's energy to help you work harder & recover smarter. Their lightweight material also wicks sweat and dries quickly. Our workout shirts are lightweight and flexible, allowing you to push your limits.

Whether you're hitting the weights, crushing a cardio session, or any other sport, our short sleeve athletic shirts are up to the challenge. They’re built for every one of your workouts.