[This review was collected as part of a promotion.] The shirt fits very comfortably, so it's still nice to wear even if you turn the heat off. I think that's important. Sometimes when I turn it off, then go to turn back on it doesn't come on. And the little tiny pocket for the battery is too small. Even a 1/4" bigger would make it easier to use. I wear it inside and struggle with it. I can't imagine being out on the freezing cold trying to get it back in the pocket with cold fingers. Honestly if it weren't for the battery pocket I'd give it 5 stars, so call this a 4.5 rating.
Primer Heated Baselayer shirt and pants. Works as they should. I really like being able to control all of my base-layer garments from the app (shirt, pants and socks). Used for hunting. I really hate wearing a bunch of layers so I can usually get by with just a Tshirt, base-layers and my camouflage Milwaukee heated jacket, but I rarely have to turn on the jacket unless it is really cold.
[This review was collected as part of a promotion.] Just got my heated base layer shirt. The electronics work as expected, but there are a couple of odd fit/construction issues that you should be aware of before buying: - I am 5' 8" 170lbs and ordered a medium because I want the shirt to fit snug as a base layer should be. The body fit is right on, but the sleeves are very short--like a good 2 inches shorter than all my other medium base layer shirts. - The collar doesn't stretch at all, so when I put on the shirt for the first time, I heard stitches popping as I tried to push my (average sized) head through the opening. This was a disappointing lack of quality in construction. For a garment at this price, I would expect some stretch in the collar.
This shirt has two layers: a mesh underlayer between your body and the electronics, and a thin outer layer (which you see in the product photos). I wish the outer layer was 50% heavier, to keep in the heat more effectively.