The Under Armour HeatGear Men's Compression Long Sleeve Shirt (style 1361524) is your go-to performance base layer for warm-weather training and competitive sport. Built from super-light HeatGear® fabric, it delivers an ultra-tight, second-skin compression fit that supports muscles, promotes circulation, and keeps you feeling powerful from the first whistle to the final buzzer. Whether you're running, training at the gym, playing football, hockey, or golf, this long sleeve top works as the foundation layer for every athletic pursuit. The midnight navy colorway pairs effortlessly with any kit, making it as versatile as the athletes who wear it.
HeatGear® is Under Armour's original performance base layer — designed to be put on first and taken off last. The moisture-wicking fabric stretches with every movement, and strategic mesh ventilation panels keep air moving so you stay cool and dry no matter how hard you push.
HeatGear® is Under Armour's original warm-weather performance fabric, engineered for temperatures between roughly 23 °C and 37 °C (73 °F–99 °F). The super-light construction provides full-body coverage without adding weight, and the four-way stretch moves in every direction with your body. Unlike ordinary sportswear, HeatGear® is built to keep you cooler the harder you work — the more you sweat, the faster the fabric pulls that moisture away and releases it from the surface. It is the essential foundation layer for any warm-weather athletic discipline.
Under Armour's Moisture Transport System is a purpose-engineered wicking technology woven directly into the HeatGear® fabric. It actively channels sweat away from the skin and distributes it across a larger surface area on the outside of the shirt, dramatically accelerating evaporation. The result is a garment that dries significantly faster than conventional cotton or basic synthetic fabrics, keeping you drier for longer during high-intensity efforts. This system is what sets HeatGear® apart as a true performance base layer rather than simply a lightweight top.
Mesh insert panels are placed precisely in the underarm and across the upper back — the areas that generate the most heat and moisture during athletic activity. These open-knit zones create a passive ventilation system that draws warm air away from the body and encourages airflow even when you are covered by a second layer such as a jersey or jacket. The result is noticeably better temperature management compared to a solid-fabric long sleeve top, making this shirt equally effective under a hockey shell, a football jersey, or on its own at the track.
Under Armour's Anti-Odor technology works at a microbiological level, inhibiting the growth of the odor-causing bacteria that thrive in warm, moist environments — exactly the conditions created during intense exercise. Unlike masking agents or fragrance treatments that simply cover up smell, Anti-Odor prevents bacteria from multiplying in the first place, so the shirt remains fresh session after session. This is particularly important for team athletes who wear the garment under a jersey where ventilation is limited and heat builds up rapidly.
The hybrid raglan sleeve design eliminates the traditional shoulder seam that can restrict overhead movement and cause discomfort during throwing, swinging, or reaching motions. By running the sleeve panel diagonally from the collar to the underarm, Under Armour engineers have created a garment with maximum range of motion at the shoulder and full freedom of movement across the chest and upper back. Whether you are taking a full golf swing, throwing a pass, shooting a puck, or pressing overhead at the gym, the sleeves move with you rather than pulling against you.
The compression cut of this shirt is not merely aesthetic — it is performance-engineered. By applying targeted pressure to the major muscle groups of the torso and arms, the compression fit increases proprioceptive awareness, supports muscles during explosive movements, and may aid circulation for faster oxygen delivery during sustained effort. The ergonomic seam layout keeps all stitching away from high-friction areas such as the underarm and across the upper chest, eliminating the hot-spots and chafing that plague poorly designed base layers during long sessions. The fit is designed to remain locked in place without rolling up or binding.
| Style Number | 1361524-410 |
|---|---|
| Colour | Midnight Navy |
| Fit | Compression — ultra-tight, second-skin fit |
| Sleeve | Long sleeve with hybrid raglan construction |
| Fabric | 84% Polyester / 16% Elastane |
| Technology | HeatGear®, Moisture Transport System, Anti-Odor |
| Ventilation | Mesh underarm and back panels |
| Available Sizes | XS, S, M, L, XL, XXL, 3XL |
| Gender | Men's |
| Care | Machine wash cold with like colours. Do not use fabric softeners. Tumble dry low. Do not iron. Do not dry clean. |
| Measurement | XS | S | M | L | XL | XXL | 3XL | 4XL |
|---|---|---|---|---|---|---|---|---|
| Chest (cm) | 76–81 | 86–92 | 96–102 | 106–112 | 116–122 | 127–132 | 137–142 | 147–153 |
| Waist (cm) | 67–70 | 72–76 | 80–85 | 89–94 | 99–104 | 109–116 | 121–127 | 132–138 |
| Hip (cm) | 81–84 | 86–90 | 94–98 | 102–107 | 112–117 | 122–127 | 132–137 | 138–150 |
Size guide values are approximate. Source: underarmour.com. Measure chest at the fullest point under the arms; measure waist at the natural waistline.
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