







🔥 Flex your core, not your schedule!
The Flex Belt is a medical-grade, FDA-cleared abdominal muscle toner using EMS technology to contract and relax all abdominal muscles simultaneously. Designed to fit waists from 24 to 47 inches, it delivers clinically demonstrated results with over 90% of users experiencing firmer, stronger abs within weeks. Lightweight, rechargeable, and portable, it’s the perfect solution for busy professionals seeking effective core toning without traditional workouts.





| ASIN | B00340H2TU |
| Best Sellers Rank | #354,592 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #351 in Waist Trimmers |
| Brand Name | THE FLEX BELT |
| Color | Black |
| Country of Origin | United States |
| Customer Reviews | 3.9 3.9 out of 5 stars (3,762) |
| Date First Available | January 12, 2010 |
| Included Components | 1 Set of Medical-Grade Gel Pads, AC Charger, Carry Pouch, Flex Belt, Instruction Manual, Quick Start Guide, Rechargeable Controller |
| Item Dimensions LxWxH | 42 x 5 x 0.5 inches |
| Item Package Dimensions L x W x H | 10.87 x 7.24 x 3.07 inches |
| Item Weight | 1.2 Pounds |
| Manufacturer | The Flex Belt |
| Material | Neoprene, Polyester |
| Model Name | Abdominal Muscle Toner |
| Model Year | 2019 |
| Number of Items | 1 |
| Package Weight | 0.56 Kilograms |
| Part Number | 0399-5060 |
| Size | 1 Count (Pack of 1) |
| Sport Type | Exercise |
| Suggested Users | unisex-adult |
| Warranty Description | 2 Year Limited Warranty |
J**Y
Lower back problems - try all the flex products!
I have had a bad back for years. Tried everything - physical therapy, acupuncture, chiropractic, and finally surgery. Nothing worked long term. I noticed the best modality for me has been the tens unit my therapists have used on me. At least it felt great while doing and and I had lasting results. Of course, you can't just stop using it or your condition goes back to what it was and maybe worse. I knew the technology of the flex belt is pretty much the same as the tens unit. I have purchased all of their products ( Flex belt, flex min and the flex arm) The belt and the mini (butt thigh lifter) are the best for me. The belt is strengthening my core to the point where it allows me to work out harder when I do crunches and any other core type exercise - it has really helped me build up my ab muscles. I could have never gotten to the point I am now without it. As for the mini thigh lifter, it feels amazing on my back area - just like the tens unit at the therapist. I love that I can use it whenever I want and get the benefits from it immediately. It has been a lifesaver for me and I could not imagine spending the money on co-pays for the rest of my life, and worse limit myself to the amount of therapy my insurance company allows for the year. I would have to pay out of pocket to continue with the tens unit. Economically this made perfect sense to me. If you are looking for weight management - I feel this helps with that also. It was not my intention but I have lost inches on my stomach for sure -not so much on my thigh area as of yet but I am sure (for me) it is because that is more difficult to do. I had much less fat on my stomach area to begin with. I do feel that my legs are noticeable stronger - I do not have much trouble running up stairs and walking longer distances like before. Like I said. I have been throw the mill with my back problems and after my surgery - which resulted in a staph infection that left me laying in bed for 3 months. My muscles atrophied a bit and I had a hard time getting back into a routine that consisted of exercising. This has made the difference to get me back on the road to good health. I highly recommend for anyone with limited mobility such as myself, as well as anyone else who needs that extra push!
D**R
ONLY REVIEW IT IF YOU OWN IT, PLEASE!!
I am so tired of reading 1 star reviews from non-users of this item! Get a life! Say something if it is relevant to the PRODUCT. I purchased this belt, and I am very happy with it! I suffer from many health issues, including fibromyalgia and hypothyroidism. The rest is too much to list. I cannot do situps or crunches, because of the pain that attacks my entire body, due to the fibromyaliga. I have weight I cannot safely lose, even though it was gained due to hypothyroidism while on a healthy diet. Before my first week of using this product had passed, I could DEFINITELY FEEL a tighter, firmer abdomen. The appearance was subtle, but it boosted my self image, and kept me going, HAPPILY, with the belt. I wore a tunic, leggings, above the knee boots (flats,) and a belt when I went to a salon I have used for more than 12 years now. ALL of the stylists asked me how I had lost weight! I told them I didn't lose weight. I was just tightening up some tummy muscles. They knew my health issues, and asked if I had joined water aerobics or anything like that. I gave them the info on the Flex Belt, which they looked up immediately. One stylist purchased a Flex Belt on the spot. She uses it while she cuts and styles hair now. She swears that her firmer abdominal muscles have significantly helped ease her back pain, from being on her feet all day at work! I am looking at the set for the thighs, and maybe (probably not) the set for the arms. I can't take long WALKS, because of arthritis in my knees, but I do work with free weights for curls and such for my arms. Floor exercises from long ago are helping my legs, but adding such a product couldn't hurt. My specialist ok'ed the belt for me to try, and I'm glad she did! I am not obese, but I am full figured. Not the same thing for those of you who are snickering. At the age of 14, I stood 5' 7" and my measurements were 38-26-38. I weighed 128 pounds. I wore a 34 DDD/F bra until I was about 25, then it went to 36 DDD/F. Within 6 months after the birth of my first child, I was back to the same measurements, but with a little extra "belly pooch" below my natural waistline. My proportions have remained roughly the same in ratio, with a general gaining of weight slowly over 30 years and a total of 4 children. I now wear a 38-40 DDD/F bra. I don't see gaining 6 inches around my ribs over that time as a tragedy, and I have the other measurements still in proportion. This belt, giving me the feel of a more solid core, has kept me doing the leg exercises that keep my calves sculpted (much to the surprise of my 18 year old daughter! They are cut!) and the will to continue light free weight exercises for my arms, despite the expected discomfort from the arm that has been through a shoulder surgery (it just kept slipping out of, and back into, socket, painlessly) and a radial nerve release. Anyone with a remote knowledge of anatomy should KNOW that MUSCLES tense, not fat. That was stated in an earlier review. BUT, what HAPPENS when these muscles flex? ENERGY is used by the body to allow this action. WHERE does this energy come from? NOT from the belt, which causes the contraction. The ENERGY comes from the BODY. How is excess energy stored in the body, waiting to be used up? AS ADIPOSE TISSUE, more commonly known as FAT. It is the same energy deposits that are used up during conventional exercise, people! Fat is fat is fat... Burn it up however you choose, if that is your goal. This belt will tone the muscles under the abdominal fat, and it WILL burn stored energy already in your body = FAT. IT IS SIMPLE SCIENCE, WHETHER THERE IS DOCUMENTED PROOF FOR THIS OR ANY OTHER PRODUCT OR ACTIVITY THAT REQUIRES MUSCLE FLEXION ANYWHERE IN YOUR BODY. Folks, you burn fat with every breath you take, even while sleeping. The key is finding a way to burn that fat (some use "calories") in the most efficient method for YOURSELF. I hope this triggers some memories of common sense, as far as exercise goes. Not every BODY needs, or can use, the same techniques that work for a DIFFERENT body.
F**G
Not worth your time nor money
I have a lot of lower back pain and was hoping this could assist me with building core strength. My experience is that this does not work. I felt the sensation, no problem. Reviewers who state that they didn't feel anything, I'm really surprised because I definitely felt it - it's a bizarre sensation! Every time I used it, I would use it longer and at a higher strength until I maxed out and I still felt no relief from back pain nor tender muscles as if they had been through any kind of workout. There was literally zero benefit for me. I thought if the belt could strengthen my core, even the slightest, it would be worth it. I finally mustered up the motivation to workout via rowing machine and that did the trick in regards to back pain. Paid a pretty penny but I'm not a workout in public "type" so it fits my needs perfectly (in addition to the physical benefits). You can hope this works. You can convince yourself that this works. People with success stories or beautiful, shiny muscles can try to convince you that "this really does work" but it doesn't. Save your time. Save your money. No miracle belt here. I thought it was worth a shot and now I'm here to tell you to get that out of your head. It's really not.
山**崎
凄くお腹に効きます、時間を掛ければ堅い筋肉に成ります。 最初から高いレベルだとお腹を痛めるので少しずつレベルを上げれば良いです。
J**R
Nice Result!
服**之
違うメーカーのも使いましたが作りも効きも値段なりでした。これは強力で効きそうです。
松**寛
説明書がありますが あまり詳しくないので どれくらいの強度で 平均はどれくらいで 筋肉をつけるためには どのくらいが適当なのか加減が、よく分かりません。 強度が0~150までは 幅がありすぎで まよいます。 ココよい数字とは どんなものでしょうか? 使っている人が言うには。あまり、強いと 下痢になるとか? 便秘の人には 良いですよね。 強度60で ためしましたが 60ですと べつに ザ、フレックスでなくてもよかったかな? スレンダーエボリューションでもよかったかも?!
高**昇
使い始めて1週間経って使用中にエラーが起こりました。それだけでなくそのまますぐにスタートしてエラー中に溜まった電流が一気に流れてくるので体がスゴクびっくりします、正常だったときよりあきらかおかしいです。不良品です。 下手したら電流で発作を起こしそうで怖いです。 製品が来て箱の裏にAssembled in China と書いてあり中国で組み立てられたものみたいです。 本物は箱のそこに製品ナンバーを貼ったステッカーがあるみたいですがそれもありませんでした。 購入の際はよく考えたほうがいいかもしれません。
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