POWERFUL INSULATION: Get Ready To Dominate The Elements With This Superior Underwear Top & Bottom set Featuring Grid Fleece Material, Made For Breathability And Moisture-Wicking Ability. Perfectly Designed So You Can Layer Up No Matter What Outdoor Activity Awaits! ACTIVE-DUTY APPROVED: A Must-Have For Any Active-Duty Personnel In Cold Climates, The ECWCS Warm Base Layer Shirt Is Essential Gear To Keep You Mission Ready When The Temperature Drops while the Base Layer Pants Wick Sweat And Moisture Away For Optimum Comfort, Swiftly Transferring It To The Top Layer For A Quick Dry. This Allows You To Move Freely Without Your Clothing Sticking To You. BETTER TOGETHER: Stay Warm And Look Sharp This Winter With Rothco's Matching Mid-Weight Cold Weather Bottoms. Get Insulated From The Elements In Style! FULL COVERAGE: Stay Prepared And Protected While On The Move With This Tactical Base Layer top and bottom. Extended Back Tail of the top Ensures Total Coverage When Crouching Or Moving, While Its Thumb Holes Keep Your Sleeves In Place Through Any Challenges You May Encounter while the Grid Fleece Material Easily Flexes And Contorts With Your Body For Optimum Comfort. These Base Layer Pants Feature An Access Fly, Along With An Elastic Waist And Leg Bottoms That Help Insulate Your Body Heat. REFINED LOOK: Get The Best Of Both Worlds With The Sleek Zip Collar. It Offers All-In-One Versatility, Transforming Your Undershirt From A Classic Turtle Neck To An Effective Base Layer For Any Activity! Rothco’s ECWCS Gen III Mid-Weight Underwear Top (Level II) is the perfect base layer for extreme cold weather. Part of the Extended Cold Weather Clothing System (ECWCS), the cold weather top is designed to keep active-duty personnel warm and comfortable all day. Made from a breathable, moisture wicking grid fleece material that's ideal for layering, so it won't get too hot or impede your movement. The zip collar allows the undershirt to be worn as a turtle neck as well, and grid fleece properties make sure it lasts for years of warm wear. The long back tail gives extra coverage and thumb holes keep the sleeves in place. Get ready to dominate the elements with our ECWCS Gen III Level II Underwear Bottoms. Made from breathable, mid-weight grid fleece material that’s great for layering, the thermal underwear is designed to keep you warm, comfortable, and dry, even in the harshest weather. The waffle thermals also will ensure that you stay fresh and clean through various outdoor or winter activities.