I am a 6'4" tall adult male with a slim build, 42" chest and 16"/35" shirt size. I bought a large size and it fits as expected for a compression shirt. The sleeves and torso are quite long and the flat seams and contrast stitching look nice. I bought them mainly to wear under short sleeves and/or to do sports. It's comfortable and warm when worn as a base layer under a jacket or other long sleeve shirt, but alone, when you don't exercise. Compared to a long-sleeved cotton shirt or "real" thermal underwear, I felt a little colder because it's not thick at all. So I'd say it's more of a UA HeatGear competitor than thermal underwear. (It's definitely cheaper than UA.) It helps keep your muscles warm during workouts, absorbs sweat, and protects your hands from the sun. I would consider wearing it under ski jackets due to its breathability, but I don't think it will keep you warm in cold weather unless you generate a lot of heat yourself. The color (dark blue) was exactly the same. I expected and I will buy more. s HeatGear should be considered thermal underwear. (It's definitely cheaper than UA. ) It helps, keeping muscles warm during exercise, wicks sweat and protects hands from the sun. I would consider wearing it under ski jackets due to its breathability, but I don't think it will keep you warm in cold weather unless you generate a lot of heat yourself. The color (dark blue) was exactly the same. I expected and I will buy more. s HeatGear should be considered thermal underwear. (It's definitely cheaper than UA.) It helps keep your muscles warm during workouts, absorbs sweat, and protects your hands from the sun. I would consider wearing it under ski jackets due to its breathability, but I don't think it will keep you warm in cold weather unless you generate a lot of heat yourself. The color (dark blue) was exactly the same. I expected and I will buy more. protects hands from the sun. I would consider wearing it under ski jackets due to its breathability, but I don't think it will keep you warm in cold weather unless you generate a lot of heat yourself. The color (dark blue) was exactly the same. I expected and I will buy more. s HeatGear should be considered thermal underwear. (It's definitely cheaper than UA.) It helps keep your muscles warm during workouts, absorbs sweat, and protects your hands from the sun. I would consider wearing it under ski jackets due to its breathability, but I don't think it will keep you warm in cold weather unless you generate a lot of heat yourself. The color (dark blue) was exactly the same. I expected and I will buy more. protects hands from the sun. I would consider wearing it under ski jackets due to its breathability, but I don't think it will keep you warm in cold weather unless you generate a lot of heat yourself. The color (dark blue) was exactly the same. I expected and I will buy more. s HeatGear should be considered thermal underwear. (It's definitely cheaper than UA.) It helps keep your muscles warm during workouts, absorbs sweat, and protects your hands from the sun. I would consider wearing it under ski jackets due to its breathability, but I don't think it will keep you warm in cold weather unless you generate a lot of heat yourself. The color (dark blue) was exactly the same. I expected and I will buy more. that it's something that will keep you warm in cold weather, as long as you don't generate much heat yourself. The color (dark blue) was exactly the same. I expected and I will buy more. s HeatGear should be considered thermal underwear. (It's definitely cheaper than UA.) It helps keep your muscles warm during workouts, absorbs sweat, and protects your hands from the sun. I would consider wearing it under ski jackets due to its breathability, but I don't think it will keep you warm in cold weather unless you generate a lot of heat yourself. The color (dark blue) was exactly the same. I expected and I will buy more. that it's something to keep you warm in cold weather, as long as you don't generate much heat yourself. The color (dark blue) was exactly the same. I expected and I will buy more. s HeatGear should be considered thermal underwear. (It's definitely cheaper than UA.) It helps keep your muscles warm during workouts, absorbs sweat, and protects your hands from the sun. I would consider wearing it under ski jackets due to its breathability, but I don't think it will keep you warm in cold weather unless you generate a lot of heat yourself. The color (dark blue) was exactly the same. I expected and I will buy more. ) It helps keep muscles warm during exercise, absorbs sweat and protects hands from the sun. I would consider wearing it under ski jackets due to its breathability, but I don't think it will keep you warm in cold weather unless you generate a lot of heat yourself. The color (dark blue) was exactly the same. I expected and I will buy more. ) It helps keep muscles warm during exercise, absorbs sweat and protects hands from the sun. I would consider wearing it under ski jackets due to its breathability, but I don't think it will keep you warm in cold weather unless you generate a lot of heat yourself. The color (dark blue) was exactly the same. I expected and I will buy more. keeping muscles warm during exercise, absorbs sweat and protects hands from the sun. I would consider wearing it under ski jackets due to its breathability, but I don't think it will keep you warm in cold weather unless you generate a lot of heat yourself. The color (dark blue) was exactly the same. I expected and I will buy more. keeping muscles warm during exercise, absorbs sweat and protects hands from the sun. I would consider wearing it under ski jackets due to its breathability, but I don't think it will keep you warm in cold weather unless you generate a lot of heat yourself. The color (dark blue) was exactly the same. I expected and I will buy more.
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