Under Armour HeatGear Fitted S men's t-shirt, black

The Under Armour HeatGear Fitted Short Sleeve is a men's performance training t-shirt engineered to keep you cool, dry, and comfortable through every workout. Built from ultra-lightweight HeatGear® fabric, it delivers a close-to-the-body fitted silhouette that moves with you without restriction. Whether you're hitting the gym, going for a run, or pushing through a high-intensity session, this shirt is designed to perform from the first rep to the last.

Key Features

• HeatGear® Fabric: Super-light construction delivers superior coverage without weighing you down.
• Moisture-Wicking Performance: Material actively wicks sweat away from the skin and dries really fast.
• Strategic Ventilation: Mesh panels at the underarm and back provide targeted airflow where you need it most.
• Anti-Odor Technology: Prevents the growth of odor-causing bacteria so you stay fresh during and after exercise.
• Ergonomic Seam Placement: Seams are kept off high-abrasion areas for greater durability and chafe-free wear.
• Hybrid Raglan Sleeves: Construction adds an extended range of motion and all-day comfort.
• Write-In Locker Tag: Internal tag on the back of the neck lets you add your name or number.
• Fitted Silhouette: Close to the body for a streamlined, performance look and feel.
• Versatile Use: Ideal for running, gym training, and all high-output sports activities.

Technology in Detail

HeatGear® Fabric – Keeps You Cool

HeatGear® is Under Armour's original performance baselayer technology — the one you put on first and take off last. The ultra-light fabric delivers superior coverage across the body without adding any unnecessary weight or bulk. It stretches in every direction so your movement is never limited, whether you're sprinting, lifting, or stretching. The result is a shirt that feels almost invisible during activity while actively working to regulate your body temperature.

Moisture-Wicking & Fast-Drying Performance

The HeatGear® fabric is engineered to transport sweat away from your skin to the outer surface of the shirt, where it evaporates rapidly. This means you stay drier and more comfortable even during the most intense training sessions. The fast-drying performance is particularly valuable for high-output workouts or layering in warm weather, where moisture buildup can quickly become a distraction. You'll feel fresh from the warm-up all the way through the cool-down.

Strategic Ventilation – Mesh Panels

Mesh panels positioned at the underarm and across the back create targeted ventilation zones that allow hot air to escape during exercise. These panels are placed precisely where heat and sweat accumulate most, delivering airflow exactly where it matters. The open-knit mesh construction is lightweight and breathable without compromising the shirt's overall structure or fitted appearance. The combination of wicking fabric and ventilation panels creates a comprehensive cooling system built into the shirt itself.

Ergonomic Construction & Hybrid Raglan Sleeves

The shirt's ergonomic design places seams away from the high-abrasion zones that typically cause chafing or wear during repeated movement, significantly extending the garment's durability. This thoughtful construction means the shirt can withstand heavy training loads over time without breaking down at the stress points. The hybrid raglan sleeve construction routes the sleeve seam from the collar to the underarm rather than across the shoulder, removing a pressure point and providing a greater range of motion. Whether you're reaching overhead, throwing, or performing complex athletic movements, the sleeves move with you seamlessly.

Specifications