Best Under Armour Workout Shirts on Amazon

The Under Armour Tech 2.0 Short Sleeve is the gym workhorse that competes directly with Nike's Dri-FIT Training Tee. The 2.0 update improved the fabric softness significantly, delivering a hand feel that feels more like premium athleisure than basic technical apparel. The loose fit cuts generously through the body, providing freedom of movement during deadlifts, squats, and overhead presses. The moisture wicking is reliable across moderate-intensity training. For most gym goers shopping their first Under Armour workout shirt, this is the standard. It also works well as a casual summer t-shirt for non-gym wear.

Under Armour's HeatGear Compression Short Sleeve is the company's flagship technical performance shirt. The HeatGear fabric is among the best moisture-wicking blends in the industry, pulling sweat off the skin instantly and dispersing it across the surface for fast evaporation. The true compression fit hugs the chest, shoulders, and arms tightly, providing muscle support during heavy lifts. This shirt also serves as a premium base layer under team sport jerseys for football, basketball, soccer, or hockey. For serious athletes who train at intensity and want the technical performance edge, this is the UA shirt worth the premium.

The Under Armour Streaker 2.0 is purpose-built for serious runners and high-output athletes. The ultralight construction reduces shirt weight to near zero, while the mapped ventilation zones place open mesh exactly where the body generates the most heat (the back, underarms, and chest). The slim athletic fit cuts close to reduce wind drag during sprints. Reflective details on the shoulders and back improve visibility during early morning or evening outdoor sessions. The shirt is less ideal for weight training due to its delicate construction, but for runners and hot-weather cardio, this is the UA pick that earns its place.

Not every workout shirt needs to be a technical performance piece. The Under Armour Sportstyle Left Chest Tee is the company's casual crossover option, built using a soft cotton-poly blend that feels great against the skin and looks good walking out of the gym to grab coffee. The classic UA logo on the left chest looks subtle and athletic without being promotional. The moisture management is functional for light training but not aggressive enough for heavy cardio or hot conditions. For casual lifters, walkers, and athletes who want their workout shirts to do double duty as casual wear, this delivers.

Under Armour's UA Rush line is the company's most technologically ambitious. The fabric is infused with bioceramic minerals that the brand claims help reflect infrared energy back to the body to aid recovery and circulation. The science behind these claims is genuinely debated, but the shirt itself delivers excellent moisture wicking, premium fabric quality, and a flattering fitted cut. The styling skews modern and athletic, looking great during training and post-workout. For athletes who want premium UA technology and are willing to pay for it, this is worth experiencing.

When the temperature drops below freezing, the Under Armour ColdGear Long Sleeve becomes essential gear. The dual-layer construction features a brushed thermal interior that traps body heat against the skin, paired with a smooth exterior that wicks sweat and layers cleanly under jackets. The fitted cut is intentionally tight to maximize the thermal effect. This shirt is overkill for indoor gym use but absolutely critical for cold-weather outdoor cardio, winter running, or trail training. For anyone who trains outside in winter, this is the foundational base layer.