Could you use this as an undershirt? Would it be extremely noticable? Also is it hot/retain heat?
1120964
Yes, you could. It isn't as hot as I thought it would be. It is tighter than most t-shirts and I had get used to wearing it. You may have to wear it for a few short periods before trying to wear it all day.
1120965
The fabric is quite thin and can certainly be used in place of an undershirt. It would not be noticeable at all. My husband wore it before our hot weather hit, so I really don't know the answer to whether or not it retains heat. However, given the unqualified recommendation of athletes, I doubt it -- but I don't know.
1120966
Yes, you could, although there is a model that LOOKS more like a traditional undershirt. I haven't tried that model. And yes, heavy duty spandex, and it is very warm.
1120967
You can see the shirt a little under certain shirts. My son said it doesn't make him hot and he usually gets hot easily.
663727
I put this cover on my child's mattress, because he has a cheaper mattress, however, he has had trouble laying down for his nap, and staying in bed, so lately, I'll lay down next to him for a while till he gets sleepy. Once or twice I've fallen asleep, and no it didn't get hot or even warm. It was very comfortable. But I haven't slept on it for an extended period of time. Sorry about the lengthy answer.
1983914
YES! I found it got very hot sometimes. It stays fairly warm, but I can only recall one time it was actually uncomfortable. For the most part I didn't notice.
304094
I usually put it on high to start with & lower the temp when I get in bed. It is plenty warm when I get in bed..........but I couldn't say if it was "HOT" or not. I always turn it down. It is of extremely good quality. So very hard for me to answer.
615714
Hmm, I haven't had a problem with getting too hot while wearing it but it's also been on the colder side where I live. But I have worn it inside my house which we usually keep about 70-72degrees and I didn't get hot. Hope that helped
137767
I do Karate here so its the same... keep it short - NO. It won't keep you cool. Sorry to say, it feels good on your skin, it won't feel so good under such a heavy garment... Plus, it will ruin this shirt... Live with your sweat, make peace with it, love it :) No need for anything under your gi. If you do want something, get a sleeveless top, but this this, its not as tight as one expected. Its good for jogging out showing off your body. If you want to keep 10 degrees cooler take some ice cubes. or spray yourself with that ice cold spray for injuries. If you want to wick sweat better, look for outdoor/hiking tops, they tend to wick much better than UA. I also tried Columbia's COOL ZERO or whatever its called, wasn't tight enough. Go to the shop before you order online, you will get the feeling yourself... Hope it helps. Again, this is one awesome shirt to wear without anything above it. I forgot to mention - AVOID COTTON! Unless you want to be weight down by all your sweat which might make you feel a bit cooler - since you're wet.
2027610
It is not breathable and yes it holds your body heat. I am thinking of returning it? It does NOT disperse your body heat.
1194876
Truthfully I wouldn't recommend it if you get hot easily. This comforter looks light but it's very heavy and very warm. It is a good comforter overall.
947915
i'm 5'10, 185-190 lbs and wear this in a large. i would say it runs true to size but also it is longer than your average shirt (like hanes or FOTL). it's good if you wear it as an undershirt, as it won't untuck nearly as easily as those other brands. it's a higher quality shirt, too, imo. the only other shirt i like as much is the hanes beefy T but those are a little more expensive.
994503
I never even thought about how warm the Thundershirt was because it was keeping my dog calm. It's not usually hot when it rains. That's a good thing. My dog has slept in in as well. So I'm not sure that being to hot is an issue for me.
607820
Good question, I have a mattress cover on it, I do not notice coolness or hotness, sort of neutral. I hope this helps, YW :)
1556205
It work great for me, but I only wear for workouts. I think with a couple layers it would be very discreet and slimming for daily use. Keep in mind this will make you sweat concentrated at waistline so you back and waistline will get damp!
250542
You could. It would leave an outline though. I wear mine over a tshirt but under an outer shirt.
2060735
I don't think it gets super hot underneath--but the sides and even the top get pretty hot. I'd be wary of surrounding it too closely but so long as the air can circulate well, it should be okay.
164834
I find that it is a warm blanket even without using the heat elements. I believe it is designed to retain that heat. I don't believe it makes you to hot, but it is a good blanket with or without the heating function...
1553162
I would not - the vibration is too strong/noise-y and they do not recommend that you have the heat against you for a long time. Not to mention, it's like a cushion, so it would be like trying to sleep on a little square cushion that is too loud and hot.
175952
I use these as an undershirt below my bullet proof vest. I don't notice and movement of the shirt and it makes wearing that vest a bit more bearable.