The Men's Endurance Long-Sleeved T-Shirt by Mountain Warehouse is crafted from 100% polyester, offering a blend of comfort and durability. This t-shirt features contrast sleeves for a stylish touch, paired with a plain design. The crew neckline provides a classic fit. It's a long-sleeved top, perfect for cooler weather. The pull-over fastening ensures easy wear. The fabric technology includes breathability, IsoCool properties, lightweight construction, and moisture wicking capabilities. This means the t-shirt is designed to keep you cool and dry during your activities. It also dries quickly when wet. Additionally, it's easy to care for and offers sun protection with a UPF 50+ rating. The sizing ranges from XXS (33 in) to 4XL (56 in), accommodating various body types.