This fire-resistant CAT 2 base layer, originally developed and tested by the U.S. Military, provides the wearer with unmatched comfort and performance that meets and exceeds the challenges of moisture management encountered daily on the job. True-Flat high-density seams and tagless neckline offer true comfort experience, while increased fabric durability and improved stretch provide longer-lasting wear and flexibility. Arrive comfortable, leave comfortable. Inherently fire and arc-resistantNEW...