Comfort and function are squarely in focus in our high-performance Mock Neck Long Sleeve Top. It starts with the next-level stretch material—made from long-lasting 87-percent polyester and 13-percent elastane—to provide durability, unencumbered movement, and moisture-wicking performance. Add the anti-odor finish and it's a smart choice for casual wear or sweat-raising tasks. Built for layering and wearing alone, the Mock Neck Long Sleeve Top is ready for any mission. Pull over mock-neck long sleeve Flat lock Seams for comfort 87% polyester/ 13% elastane jersey, 5.3-oz., wicking and anti-odor finish 5.11 Jasper Thermal L/S Shirt