N-Ferno 6481 Lightweight Base-Layer Pants are designed for comfortable warmth in mild to cold conditions. Moisture-wicking technology, anti-odor treatment and breathable mesh fly front keep workers comfortably fresh, dry and warm all day. Breathable, stretch fabric made of 180g polyester-spandex performance material won't made workers feel overheated or constricted during strenuous activity. Fabric is smooth and stretchable for easily layering under work pants and bibs. Elastic waistband ensures secure, comfortable fit. Unlike other base layers, these pants are designed to sit slightly looser on the skin to enhance breathability and provide an air gap for added insulation. Flatlock seams and a tag-less interior mean no irritation and chafing. Machine-washable pants with a 32" long inseam fits waists from 30" to 34" in diameter.