Carhartt's Work-Dry® base layer lightweight thermal bottom will help you show cold weather who's boss. Made of 100% polyester lightweight knit, it features a grid pattern on the interior to improve moisture management, an anti-odor fabric treatment, reinforced stitching on all seams and an elastic waist. *Field-Tested *100% polyester knit, lightweight *Interior grid pattern improves moisture management *Re-enforced stitching on seams material