Mack Weldon long-sleeve thermal crewneck in a versatile charcoal heather. Crafted from a technical blend featuring Modal, Thermolite® Polyester, and a touch of wool, this waffle knit top offers superior warmth and moisture management while maintaining a soft, lightweight feel. Raglan sleeves provide a full range of motion, making it an ideal base layer for outdoor activities or a comfortable standalone piece for a minimalist everyday look.