ActionHeat Base Layer Battery Operated Heated Shirt for Men – Electric Heated Clothing w/ 3 Heat Panels for Winter Innerwear, Outdoor Camping, Skiing, Hunting - Black

I've had 1 heated jacket, 1 heated jacket liner, 2 heated vests, heated gloves, and 2 heated hoodies. I ride motorcycles all year long so staying warm is important. Now with all of them, I've found that I've had to order 1 size smaller than I'm used to buying just so it would be a little snug. You want it snug otherwise the heating elements won't press tightly against your body. This is the same with this base layer. I usually wear medium, but the small feels just like a regular medium.I've found it to be equally warm compared to my other heated clothing. What I like the most is that I can wear anything on top of it. I'm not tied to just wearing the same heated jacket. I can wear a light windbreaker or a hoodie and still keep warm in chilly weather. Also the light on the chest of the heated hoodies and jackets attracts too many onlookers. With the heated base layer and something over it, no one knows you're using heated clothing.The pocket that holds the battery pack only fits a small pack like the one that comes with it. I sometimes use a 20,000 mAh pack for all day use so I put that inside my jacket pocket. The cord is long enough that I can put it in the pocket without any hassle.

Being very cold-natured I have several pieces of heated clothing; this base-layer shirt is definitely my favorite! I love the fact that I can plug it into any PC, wall bug, or power bank and get warmth! (as long as the power source is 5V/2A which most are) I have a few other shirts which use proprietary batteries/ chargers, etc and its a pain to remember to pack the right ones when leaving for a while. With this shirt I can use any standard power bank.The shirt runs true to size but I would suggest keeping it as snug as possible to prevent heat escape and maximize its effectiveness.I don't really like the lighted switch on my chest, especially in low-light situations, but I'll take the light over the cold any day!The only con is that I can't get one in white!

So far it’s been amazing. My husband works in the weather and hates being cold. He hasn’t had to turn it above low yet. When wearing a hoodie the heat goes all the way up to his head. The fact you can use any battery pack is great too. He has extra charged in the car but has never had to use. He wears a long underwear shirt under it to help decrease need for washing it. Want to be sure and preserve it.

Really heats up fast, even on the lowest setting. I wore for the first time at the lowest setting, then the middle and the highest. It was way too hot on the highest setting. I ended up using it for 2 hours on the lowest setting and it kept me nice and warm. I finally turned it off when I thought it might be burning my skin, thankfully not. Not sure how long the battery will actually last, so I purchased another battery from a different vendor. I plan to use it all day 5 days a week, so I need the extra juice for it. I highly recommend this product very much....WOW! AAA+++

BURNS! Wore 4-5 times, washed on gentle after each wearing. Last time out multiple dime-sized burns across my upper back. Never wore directly against skin, only as 2nd layer, thankfully, otherwise it could have been worse!

It’s seems to heat very well, it fits like a shirt really lose fitting not like a base layer that fits snug

Do not purchase this base layer expecting the heating zones to be as shown in the images. The images are very misleading. I ordered three of these--2 as gifts and one for myself. I am returning them all. The heating zones are tiny compared to the images. There is a single, minimal heating zone in the upper chest only, and nothing like the "M" shapes shown in the images. Same on the back. On the back, the heating zone is only within a couple of inches of the collar. It is tiny. The heating elements do not extend down the back at all or on the shoulder blades.In two decades of shopping online, I have never left a 1-star review. Until now.Thankfully, Amazon makes returns a breeze. I will return these and order another from another company.

Great shirt, have had it 2 months washes by hand, I have 2 and have to use them every day at work bcs the AC is so low.Battery 6 hours on low works fine.A great product!