Our Ecolator Pant features high loft grid channels that create an ideal microclimate which efficiently traps air and effectively allows circulation. A great layering thermal long johns when the temperatures drop. Goes great with the Ecolator Crew or Quarter Zip Features Thermoregulation Technology keep you warm and dry 4-way stretch & high loft grid fleece for unrestricted movement UPF Rating 50+ All flat seam construction to prevent chafing Comfort waistband and contour fly front for a great fit 32" inseam, ankle-length fit Technology Climasense fiber fusion is designed to regulate your optimal temperature Thermoregulation technology provides comfort through a wide range of temperatures UPF rated for sun protection Odor Control neutralizes sweat and odor 4-Way Stretch moves naturally with your body in all activities Fabric Composition and Care Body: 47.5% Recycled Polyester, 47.5% Polyester, 5% Spandex Knit Overlay: 88% Polyester, 12% Spandex Machine Wash Cold. Dark Colors Separately. Tumble Dry Low. Do not Iron/Steam or Dry Clean. No Fabric Softener or Dryer Sheets. Shop Matching Tops: 3.0 Men's Ecolator Heavyweight Performance Quarter-Zip Thermal Shirt 3.0 Men's Ecolator Heavyweight Performance Thermal Crew Shirt