The Under Armour Mock Turtleneck Compression Shirt for men in size L is a black long sleeve top made from a blended fabric of polyester and elastane. It features a mock neck with a stand-up collar and pullover closure, making it ideal for activewear occasions such as gym training. The shirt offers mild compression, easy care, stretch, and is suitable for all seasons, particularly winter and fall. With its athletic fit and sports-themed design, this Under Armour shirt is perfect for men looking for high-quality performance apparel.