The Under Armour Cold Gear Mock Neck Compression Shirt is a pre-owned men's activewear top made of a polyester blend fabric. It features a solid black color, long sleeves, and a pullover closure. The shirt has a mock neck and an athletic fit, with a size of 2XL and a regular size type. The blended fabric is medium-washed and has thermal properties, making it suitable for various activities such as gym and training, walking, cycling, and basketball. The shirt is part of the Under Armour ColdGear product line and has easy care, stretch, and moisture-wicking features.