Under Armour HeatGear long-sleeve base layer in crisp white, engineered for high-performance athletic wear. Features a snug, form-fitting silhouette with strategic seam placement for enhanced mobility and reduced chafing. The signature HeatGear fabric wicks moisture rapidly, dries quickly, and provides UPF 30+ sun protection—ideal for training, running, or layering under jerseys. Subtle reflective stitching along side panels and sleeves adds visual detail and visibility in low light. A small, tonal Under Armour logo is centered on the chest, while the interior neck tag displays 'UNDER ARMOUR' branding with size and care info. Flatlock seams ensure comfort against skin during extended activity. This versatile piece excels in warm-to-moderate conditions (spring/summer/fall), supporting gym sessions, outdoor sports, or daily active lifestyles. Lightweight, breathable, and odor-resistant thanks to antimicrobial treatment, it maintains freshness even after intense workouts. Perfect for men seeking functional, minimalist performance apparel that blends seamlessly into both sport and streetwear contexts.