These multi-purpose waffle-knit thermal bottoms from Harbor Bay were specially designed at DXL with precise proportions and a perfect Big and Tall fit. They're built with thermal-regulating insulation to provide heat retention and temperature regulation without overheating, odor control technology that helps neutralize odor causing bacteria and moisture management to help keep you dry. The comfort-stretch fabrication provides superior softness and allows for a full range of motion. Pair them with our coordinating waffle-knit thermal crewneck shirt for a complete base layer when you're braving the elements.