Proton Baselayer Shirt Women's

Great warmth, but wide & bulky and waaaay too long. I order XS as a 5'4” 105lbs size 2 in women's. The top so warm, but really wide and much, much too long. It hangs below my bottom and really bulks up my ski gear. This is still the best heated underlayer I've found, despite the bulky long fit.

I am ALWAYS cold and this heated shirt keeps me warm all the time I wear it. I charge the battery every other day, so that when I feel cold I turn the heat on. It heats up fast and just in minutes I get that wonderful warmth feeling! It's comfortable and looks nice. I will wear it under a jacket winter time, but it looks nice to wear it on its own too. I would definitely recommend it to anyone who needs a good quality product that will keep you warm and comfy.

I absolutely love this shirt. I found it to be quite comfortable to wear, as well as the heating feature. The low setting is great if you are chilly inside at home or work.

This shirt is awesome. The heating is perfect with the four different modes. So good I bought a second one for my sis. She loves it too! She said it fits perfectly.

A great warm shirt. Fits well and works great. My family and I went fishing and this shirt kept me warm and toasty the whole day. It took like 3 hours to charge the battery on its full, so I could use it again. No issues so far. I would buy again.

This heated shirt definitely warms you up. Customer service has been very nice and helpful. I recommend one of these if you need a warm shirt that looks cool.

[This review was collected as part of a promotion.] I had never tried mobile warming, and was a little intimidated at first about setting it up because I am sometimes not the most technologically inclined. I was completely wrong though. Once it came in and I started settng it up, I was pleasantly surprised with how easy it was. The app is pretty self explanatory and walks you through everything. I was also really surprised with how super quickly it warmed up. As you change between each of four levels of heat, it takes no time at all to heat up and change based on your preferences. I love that you have the ability to change your heat settings on the shirt itself or through the app. The app also makes it very clear how much battery life you have left at any given time. Another unexpected perk that I didn't think about is that this was really soothing to my achy back. The heat was really comforting to it and helped with soreness that I typically experience. As far as sizing, I am typically a small in women's and this is a small. I personally found this to be true to size. This is an amazing shirt-and will be a great addition to my winter attire. I'm glad I found it, and I'm stoked to use this in all of my winter adventures!

[This review was collected as part of a promotion.] Women's size large is accurate and gives me enough room to layer if needed. Sleeves are long enough, which is often a problem for me. The length is great so it doesn't ride up when I bend or sit. The material is soft and the subtle camo print is nice. The heating elements are in the upper/middle back and I don't notice them when the shirt is on. The battery pack is lightweight and fits perfectly in the right, front pocket (where it also plugs in). It does not interfere with movement. I can comfortably wear layers under and over this shirt. It has 4 heat settings that can be adjusted by using the easy-to-reach button on the front or by using the Bluetooth connected app on a mobile device. This shirt definitely keeps my core warm and still allows me to comfortably do yard work, hiking, and other outdoor activities. Plus, I can turn off the heat and continue wearing it when I go indoors. The only upgrade I can think of would be additional (and independently controlled) zones of heat, but this heated shirt is still a yes for me.

Overall good product. I see reviews and descriptions for two sections of heat in the back. I only have one. I am wondering if I should return this and see if I needed up with a defective one.

[This review was collected as part of a promotion.] While this year's model has some additional texture to the shirt for eye appeal, it is not as warm or true to size as last year's model. The material feels different and allows you to get much colder if the heating element is not on. I honestly would much prefer the prior year model to this one.