Sun WillThermal Underwear Set Women Men,Breathable Flexible undershirt snow gear for Home Indoors, Outdoors, Sports,Winter

I've only used these 3 times so far. But they heat up quick and I feel the heat penetrating through my body. I've only used them in slightly cold weather so far (I always want to be super warm) but they get hot quick and I had to turn it off some of the time. Which is a good thing! I think the batteries might last 4 hours on full strength. I didn't time it though. I may buy some spare batteries...

They work well. I’ve had them for a year or so now and I am glad I have them working on a roof. I had to buy extra batteries as they die quickly but that is expected when used a lot. Downside is I wish they covered more area of your body. The top only has it on one side as do the bottoms. It would be nice if it was the whole Garment and not just sections but paired with other layers it does the trick on cold days. Next purchase the socks. Overall I’m satisfied.

So the sizes run small . I went up a size when I ordered. Realistically if I had known I would have ordered 2 sizes larger than my normal .As far as function , They will warm you up for sure and the battery life is decent . My gripe is the placement of the power button on the long underwear , it is at the waistline and was turning on and or going through the power settings when I was sitting ( I used these for hunting ) . It was a minor inconvenience . Overall , for the price and time of delivery this product is great .

Went to Chicago for Christmas.. I didnt even have to use the heater... keep me warm enough without it.

I don't care for the material so I couldn't even give the heat a chance. I bought them for under my hunting gear and we'll mayb some things need to be made normal so it fits right under other stuff. I don't know thsts my opinion

Fit as expected - 1 to 2 sizes above listing. I intend to use only under clothes, so a tigh fit is good. I’ve found that medium heat is perfect for current weather conditions and level of activity. They provide plenty or comfort and heat even without the heaters. Looking forward to outdoor events this winter (in Buffalo, NY for Xmas).

Awful misleading size. Way too small. I ordered an XXL and the top was more like a medium. Pants were OK in size. While at it Battery wont last but 5 minutes after full charge. Decided to try pants alone

Works good unless you cant turn it on because something is wrong with the button you push to turn it on