With the Opsial Helmer long-sleeved thermal shirt, you stay comfortably warm and dry during demanding work in cold conditions. This grey base layer for men provides reliable thermal insulation while actively wicking away sweat. Crafted from a blend of recycled polyester, polyamide, and elastane, the stretchy and fast-drying fabric fits smoothly without chafing. It is ideal for layering on construction sites, in unheated warehouses, or during outdoor jobs in low temperatures.