Get ready to fight the cold with our ECWCS Gen III Level II Underwear Crew Top. Made from breathable, mid-weight grid fleece material that is great for layering, the thermal military shirt is designed to keep you warm, comfortable, and dry, even in the harshest winter weather. The waffle thermal also features anti-microbial and anti-odor defense, ensuring that you stay fresh and clean through winter combat missions and cold weather activities.