The Men's Therma Base Layer Pant from BlackStrap has a full-length fit and features soft touch fabric that is designed to work with your outer layers to keep you warm and dry in any condition. Critical construction elements include a vented crotch, fly, and soft-flex waistband. When it's cold as balls out there The Therma base layer will keep the blood pumping. Step out of the warm car with confidence, there's blower pow to find.