Keep the chill at bay with our rugged Jasper Thermal Long Sleeve Shirt. We combined classic Henley styling with 5.11 durability, making the Jasper a solid option for travel, training, and the day-to-day. The warm thermal knit is crafted from a soft cotton and polyester blend for lasting comfort. A three-button placket and side seam vents help you manage the temperature. The Jasper Thermal makes a highly functional addition to your bug-out bag, so you’ll want to order one for daily wear and an extra one—for just in case.