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Your cart is empty.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.
Kayla Luttrell
Reviewed in the United States on March 5, 2025
My husband loves these and says they are way warmer than name brand layers. Good fit!
Brandon
Reviewed in the United States on February 15, 2025
Medium Fits Perfect. I’m a Small Regular In OCP, and medium fit just a tad larger but very comfy. Quality is perfect and warm
airlinepilot72
Reviewed in the United States on February 1, 2025
Great fit and warmth. Just like regular issue.
Jordan Osmack
Reviewed in the United States on December 8, 2024
The fleece thermals are very similar to what I had in the military. High quality. Highly recommend!
michael green
Reviewed in the United States on December 20, 2024
I really like them. Only issues I have. I am 6 ft 225lbs. Workout a lot. Decent shape. I ordered XL. The top is baggy but not bad. I think large would have been better. The bottoms was supper baggy in the groin area and a little longer in legs. But otherwise pretty awesome.
James Daly
Reviewed in the United States on November 18, 2024
These are nice, and thick.Keeps you warm
Trey A.
Reviewed in the United States on February 4, 2022
If you fold the tops collar inwards, you can wear a shirt on top without the collar poking out.The bottoms wear very comfortably under jeans/joggers/pajamas.These are essential for working in the cold, and also make great sleep wear.
Kindle Customer
Reviewed in the United States on October 19, 2022
Wonderful stuff and great seller. I ordered a pair of Medium for myself and a Large for my buddy. I am convinced I could wear these and nothing else in 40 degree weather and keep warm. I had to take them off in the middle of the night when they arrived as I had it a normal 70 degrees inside. Very comfortable, light weight material.
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