Under Armour ColdGear mock neck base layer provides thermal warmth for cold-weather training and outdoor activities. This long-sleeve performance shirt features a vibrant olive and lime green colorway with a distinctive geometric Maryland flag-inspired pattern on the sleeves and back. Designed with a fitted silhouette and moisture-wicking fabric, it includes a soft, brushed interior for comfort and heat retention. The mock neck collar displays the signature logo, while the back hem features bold Under Armour branding. Perfect for running, hiking, or layering during winter sports.