The Under Armour Men's UA Tech 2.0 1/2 Zip Long Sleeve T-Shirt in black, size medium, is a versatile activewear top suitable for gym workouts and training sessions. Made of lightweight and moisture-wicking polyester knit fabric, this shirt features a mock neck with a zip closure, long sleeves with a classic/fitted sleeve type, and an athletic fit for added comfort and performance during exercise. Machine washable and designed for mild compression, this shirt is a great addition to any man's activewear collection, providing both style and functionality for active lifestyles.