The Under Armour HeatGear Men's Compression Top is the original performance base layer — the one you put on first and take off last. Built from ultra-light HeatGear® fabric, it hugs your body with an ultra-tight, second-skin compression fit that supports your muscles, boosts circulation, and keeps you feeling powerful through every rep, sprint, and set. Moisture is whisked away instantly and the fabric dries remarkably fast, so you stay fresh and comfortable no matter how hard you push. Suitable as a standalone training top or as an ideal first layer under any kit, this shirt is the go-to choice for athletes at every level and across every sport.
HeatGear® is Under Armour's original performance fabric engineered specifically for warm-weather training. The ultra-light construction delivers full-body coverage without adding bulk or restricting movement. Its advanced yarn structure pulls heat and moisture away from the skin surface, allowing rapid evaporation so the shirt feels consistently dry against the body. Whether you are training outdoors in summer heat or layering under a jersey, HeatGear® keeps your core temperature regulated and your focus on performance.
The ultra-tight, second-skin compression fit is engineered to wrap the body precisely, applying targeted pressure to the muscle groups. This compression increases proprioception — your body's awareness of limb position — which can improve stability and coordination during fast, explosive movements. The elastane content in the fabric ensures the shirt stretches in every direction with you, snapping back to its original shape after each movement. Over time, consistent compression wear has been associated with reduced muscle fatigue and faster post-exercise recovery.
Mesh underarm and back panels are precisely placed at the body's primary heat-release zones, where perspiration is highest during intense exercise. The open mesh construction allows airflow to pass directly through the fabric in these areas, actively cooling the skin and accelerating sweat evaporation. This targeted approach to ventilation keeps the shirt breathable without compromising the compression and support provided by the main HeatGear® body panels. The result is a smart thermal balance — compression where you need support, airflow where you need cooling.
The hybrid raglan sleeve design extends the shoulder seam diagonally from the collar to the underarm, eliminating the traditional shoulder seam that can restrict overhead and rotational arm movements. This construction is particularly beneficial for sports involving throwing, swinging, or reaching — such as golf, tennis, baseball, and gym training. Combined with the 4-way stretch HeatGear® fabric, the raglan sleeve ensures that lifting, extending, and rotating your arms meets zero resistance from the garment, delivering unrestricted athletic performance in every plane of movement.
Every seam on this shirt has been deliberately repositioned away from the high-friction contact zones — shoulders, underarms, and sides — where repetitive athletic motion would otherwise cause chafing and skin irritation. The ergonomic seam placement not only protects the skin during prolonged activity, but also reinforces the structural integrity of the garment in areas subjected to the most stress. This design extends the working life of the shirt and makes it equally suitable for long training sessions, match days, and everyday active wear under other layers.
A dedicated internal locker tag is built into the back of the neck, providing a discreet space to write your name, initials, or squad number with a marker. This practical detail makes the shirt instantly identifiable in shared changing rooms, laundry bags, and team kit collections — eliminating confusion without the need for external labels that can irritate the skin. It is a small but thoughtful feature that reflects Under Armour's understanding of real-world athlete needs, from professional team environments to youth sports leagues.
| Style Number | 1361518-600 |
|---|---|
| Fit Type | Compression — ultra-tight, second-skin fit |
| Sleeve | Short sleeve |
| Collar | Crew neck |
| Body Fabric | 84% Polyester, 16% Elastane |
| Mesh Panels Fabric | 92% Polyester, 8% Elastane |
| Colour | Red / White |
| Available Sizes | M, L, XXL, 3XL |
| Garment Length (approx.) | SM: 25.5 in · MD: 26 in · LG: 26.5 in · XL: 27.5 in · XXL: 28.5 in · 3XL: 29.5 in |
| Intended Use | Training, team sports, base layer, everyday active wear |
| Care Instructions | Machine wash cold with like colours · Non-chlorine bleach only if needed · Tumble dry low · Do not iron |
| Origin | Imported |
| EU Size | XS | S | M | L | XL | XXL |
|---|---|---|---|---|---|---|
| Chest Circumference (cm) | 76–81 | 86–92 | 96–102 | 106–112 | 116–122 | 127–132 |
| Waist (cm) | 67–70 | 72–76 | 80–85 | 89–94 | 99–104 | 109–116 |
| US Size | 26–27 | 28–29 | 30–32 | 34–36 | 38–40 | 42–44 |
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