My husband works in Hvac. he installs furnaces in buildings that don’t have any heat and works in freezing cold conditions.He has tried wool socks, and thick, expensive work socks but nothing seems to keep his feet warm enough. So I decided to order him these heated socks..I only wish that I would’ve ordered them sooner.they are absolutely terrific!One charge can last him all day on low setting. On its highest setting it can get him to lunch time. So he can recharge with his power bank no problem.They charge up fast! About 30 minutes.Not only do they keep him warm but they also help with foot pain that he’s dealt with for years.The different heat settings really come in handy especially living in New England where the temperature fluctuates so often.Very nice quality fabric as well. thick, yet also breathable. padded for extra comfort and support.they also do very well in the wash. they keep their shape and no pilling whatsoever.. (I hang dry them)Overall extremely happy with these heated socks. totally worth the price tag! I would definitely buy them again.These socks do work, so I am giving 4 stars. I am not giving 5 stars because they don't do what I need them to do and what they say they'll do, which is fit and be comfortable in ski boots. It's not the socks problem that they don't fit in my ski boots but there was very little information in the description around their thickness and comfort if in a ski boot. If you are even a semi-serious skier, with proper fitting boots, these socks will not work because ski boots need to fit firmly with one sock layer. These socks are way too thick for my feet to be comfortable in my ski boots. Again, they worked great for heat so they deserve the credit for that.This sock is warmer on the low setting than previous eclectic sock I bought work on hi. I bought them for a trip to Yellowstone next month. Initial tests are good though. Will see what happens next month. I wear an 11.5 boot and I bought the XL sock. If I buy another pair I will get large instead. The XL are fine and comfortable in boot but are kinda long for me even at 6' 2". Only noticeable issue is they don't fit over my calf so I had kinda cuff them above boot. Not a significant issue, but makes me wonder if I do buy Large size if the issue will be worse.These worked great while at my nephews soccer game but they can be kind of uncomfortable while walking. They stay up great even with the battery pack on the cuff, though I would recommend using these with a slightly larger shoe as they are bulky and can get too hot when directly squeezed against the skin.I’m in love! Florida girl here and these are a game changer for sitting in the cold. I bought two pair! The longest I’ve worn at a time is 5 hours and they get so warm in my river boots that I turn them on/off as needed and recharge inbetween use. I wish I would have invested these years ago for our trips to the mountains. No need to double layer and mess with cheaper disposable battery powered options (I’ve tried everything) just try these. It wont let me include a photo but I got the SM size and they fit great fit size 5-7, it size up if it feet are larger. The battery pack sits just above my tall muck boots so I can change the intensity of heat as needed. They get hot!This is a 100% honest and accurate review of these socks. I spent hours reading reviews before picking these socks as the best pick for my price range. Sure, there are more expensive socks out there but I didn't want to spend $300 for a pair of socks. So, here are the critical points for me.1. Comfort - These are similar to long "boot" socks and that is a plus for me. They pull up all the way to the knee and actually feel great up around the calf/knee. Now to the foot and toe area. As you know, your feet are super sensitive ( Just get a small small pebble or anything in your shoe). So, the wires around the foot and toe area are fine until you put on shoes/boots and then it's a bit uncomfortable. Maybe it would be ok to some but to me it's noticeable and i'm constantly trying to move wires with my toes. Annoying!2. Heat!! - Blunt and to the point. Lowest level basically has little to no heat. You can't tell that you are wearing a heated sock honestly. Medium level you can feel some warmth but it's nothing to jump up and down about. High level feels pretty good and would be phenomenal if the heating level started here. I would compare the high level to the same as the Hot Hands disposable toe warmers.In a nutshell, if you just want a good pair of heated socks to lounge around the house, these may be perfect for you. If you are an outdoorsman, sportsman or someone looking for comfort and HEAT for many hours out in cold weather, you may be pretty dissapointed. These are OK socks but don't think set your bar too high.. thanksBOUGHT THEM FOR HUNTING AND HAVE NOT HAT A CHANCE TO USE THEM OUTSIDE. TRIED THEM IN THE HOUSE DID NOT NOTICE THE LOW SETTIN BEING THAT GOOD, BUT WAS IN THE HOUSE. MEDIUM AND HIGH WORKED GREATThe smallest size fits a woman’s size 6/7 foot at best. I bought for my toddler size 13 / big kid size 1 and it was waaaay to big. Even big for mommy. So wish they would make smaller sizing.Fabric is also thicker cotton - wish they would make more Wool or spandex mix so it would be thinner and warmer as the socks are thick but not warm without heating. So kind of bulky. Bottom of foot is bulky with extra cotton weave on bottomWhere hesitant element is.Moderately warm - not super warm for really freezing days or boots that aren’t super insulted with primaloft or down or thinsulate. Wear woolSocks and hot pockets and it will be warmer and equally as bulkyAprès un essai préliminaire : Les Plus grandeur Ok moyen et je chausse des 7 US. Les chaussettes monte au dessus des mollets parfait. Aucun inconfort avec la batterie. Tissu assez épais. le bout des chaussettes qui pour ma part est rouge enrobe tout le bout du pieds et cette zone chauffe au complet. Donc toutes les orteils dessus et dessous sont au chaud. Le moins le talon qui est pas si grave ne chauffe pas. Un test de 4 heures extérieur par moins 25 Celsius. Aucun sentiment de froid ou inconfort. Il reste a savoir si la durée des batteries est vrai. Bref je recommande.Socks are quite long reaching to just under kneecaps, thick(not too thick) and material seems comfortable and of decent quality. My feet are 11.5" (height 6'3) so large was the right choice. Haven't used them in the cold yet but as I have a seasonal job I will be trying them out soon and will post a fallow up review as to how well these work in the cold.Ok so after working outdoors all week with my new heated socks on and with most days being around -10C/-25C with the windchill, I'm sold! Toes never froze up for a second during an 8hr shift. Left on lowest setting batteries typically lasted me about 9hrs which is pretty good. That being said, I had to do some unexpected OT the other night after batteries had died and my feet froze up quick due to my boots being a bit damp from trekking through snow all day.?My advice is that if you are going to be exposed to the cold 8+hrs or if you need to run power on med/high settings, you may want to pick up a secondary set of batteries to swap out halfway through your day. Overall, these socks have done a good job of keeping my feet/toes warm while working and that's exactly what I needed. Happy I bought these socks and I would recommend this product to others.Based on reviews, I thought these would be a good buy. Now I am suspicious of those reviews.I bought the correct size by their chart. They fit my feet just fine (even a little loose) but they are ridiculously tight on my calves.Also, unlike some much higher quality products, the wires run down the side and right over the ankle. The wires are so prominent they are uncomfortable to wear. You have to spend considerable time trying to get the socks to sit just right so the wires aren’t digging into your ankle.These are unwearable. Don’t be fooled. People giving this a high rating are missing out on what could be with a higher quality product.Love, love, love these socks!! I frost bit my toes recently and now my feet get cold very quickly. I have high rated winter boots but it’s not enough. These socks keep my feet really warm even when I’m outside in the minis 30 degrees Celsius. I can do my barn chores and stay outside for about 6 hours without a hint of cold feet. They are amazing.I bought this for my son, to prevent freeze during ski, the problem for us is the size is smaller than regular size. especially the socks' leg part, it is extremely too small to put on. actually I cannot put it on for my son, he is only 130cm , have to return it. we don't have chance to test if it warms or not. i gave 3 stars as it waste my time, I have to wait another two weeks to get my refund, not sure if it is Amazon's policy or from seller, so in total waste three weeks, the weather is getting warmer soon .