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🕴️ Sweat-proof confidence that keeps you sharp and fresh all day long.
The Ejis Sweat Defense Undershirt is a premium crew neck undershirt engineered with 120 sq. inches of sweat-proof micro modal fabric infused with silver ions for odor control. Combining ultra-softness, high stretch, and smart design, it offers superior sweat protection, lasting durability, and all-day comfort—perfect for professionals who demand both style and performance under pressure.








| ASIN | B01BL79D94 |
| Age Range Description | Adult |
| Apparel Closure Type | Pull On |
| Apparel Fabric Stretch | High Stretch |
| Apparel Fabric Weight Class | Lightweight |
| Apparel Occasion and Lifestyle | Leisure/Travel |
| Back Style | T Back |
| Best Sellers Rank | #219,060 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #198 in Men's Undershirts |
| Brand Name | Ejis |
| Care instructions | Machine Wash |
| Closure type | Pull On |
| Color | White |
| Cuff Type | No Cuff |
| Customer Reviews | 4.5 out of 5 stars 885 Reviews |
| Fabric Stretchability | Stretchable |
| Fabric Type | 95% Micro Modal, 5% Spandex |
| Fabric type | 95% Micro Modal, 5% Spandex |
| Fit Type | Slim |
| Fit to Size Sentiment | Positive |
| Garment Size Country | United States |
| Hemline Form | Straight Hemline |
| Import Designation | Imported |
| Item Length Description | Standard Length |
| Item Weight | 16 ounces |
| Manufacturer Part Number | 201606 |
| Material Type | 95% Micro Modal, 5% Spandex |
| Model Name | Undershirt |
| Neck Style | Crew Neck |
| Number of Items | 1 |
| Occasion Type | Vacation |
| Origin | Imported |
| Pattern | Solid |
| Product Care Instructions | Machine Wash |
| Seasons | All |
| Shirt Form Type | T-Shirt |
| Sleeve Length Description | Short Sleeve |
| Sleeve Type | Short Sleeve |
| Sport Type | Walking |
| Style Name | Undershirt |
| Style Number | 201606 |
| UPC | 013415314501 641022985755 |
| Unit Count | 1 Count |
| character | sports |
| collar-type | Crew Neck |
| top-style | T-Shirt |
J**.
Great at preventing sweat stains, resilient collar!
I have tried both these and the Thompson. Both have been put through rigorous testing as I wear these under a uniform every day. Both do exceptionally well at preventing arm pit sweat wicking through to my uniform. However; these shirts seem to be made of better quality, and most importantly, they put a lot of consideration into the quality of the collar. The collar on the other brand lost its fit and form after only a few weeks worth of washes. This one has maintained its shape and elasticity so far. This extremely important to me to maintain a professional appearance, not to mention the uncomfortable feeling of a bunched up or sagging collar. All of these shirts have gone through at least 40 wash cycles and some 16 hour days. Obviously wish they weren’t so expensive, but I probably won’t stop buying them either. Extremely happy with this product.
H**R
Absolutely excellent sweat protection and durability
The fit great. I’m a sweaty person, and while my back and front May get sweaty, my armpits remain dry. Been using for over a year with regular machine washing and they work as well as when they were new. The body is very light and cool and it is comfortable for even 14 hour days. Worth every penny spent and I recommend these to any person I meet who complains about armpit stains. I use them for work which is 12 hr days, 190 days a year.
J**.
Gives confidence...but costly.
Today I wore Ejis for the first time and I sweated more than usual. I was constantly checking to see if my sweat showed through my shirt. You see...today was my first day back at school as a teacher. I chose my first time wearing Ejis for an occasion as today. I did not see one single sweat stain seep through my shirt. So far, I absolutely love the Ejis shirt. I do wish they were not so expensive. I know I’m buying quality and it is fixing a hyperhydrosis issue I have had for nearly 20 years. I bought two shirts at 72 dollars. This is more expensive than any other clothing article I own. I did tell my wife today I would buy three more so I can wear one every work day. I actually chose Ejis over any other because I thought I was buying 3 at 36 dollars. I was surprised to find when they arrived that it was only one. Because my hyperhydrosis is so intense I decided to try it out anyways. I’m satisfied with Ejis doing exactly what it said it would. I’m not satisfied with how much they cost. I will be referring this product to one of my cousins who also has hyperhydrosis. Thanks Ejis for making such a good product!
E**Z
much better than the two other brands (Thompson T and The ...
This undershirt is so far, much better than the two other brands (Thompson T and The Bro) I have purchased and tested. The fabric used is very soft with a tint of spandex which makes it feel nice on the skin. The waterproof layer under the arm, which extends to the side of the chest, is also very effective in preventing sweat from sipping through while remaining relatively thin to not add extra bulk. Extra bulk under the armpit by itself produces heat which consequently increases sweating; the very problem one is trying to solve in the first place. The other undershirts are just too bulky/thick under the arm. For folks who have to wear a suit jacket over a dress shirt, it's absolutely imperative that the under shirt is thin enough. One thing you can do to further make this shirt comfortable is to remove the inner and outer layers of the shirt's underarm area . Simply use a scissors to cut it out to just reveal the under waterproof layer/material. This might increase movement noise by an ever so slight degree but the advantage is that you have reduced the thickness of the underarm are by 2/3. With this configuration, it allows you to wear you dress shirt over, and then your suit and all you have is three layers total versus five layers if you used the shirt as is). Again, this is in regards to the underarm area of the shirt. The rest of the shirt is perfect as is. I am giving this item a 4 star only because the shirt is cut a bit small (at least for my build) around the shoulder. I got the large and it's snug around the shoulder which means I will need an X-large, even though the body fits perfectly. I don't see an extra large on the size table. For this shirt to be a 5 star, the designer will need refine the way the shoulder fits and allow some space under the arm to allow enough breathing, which consequently reduces Axillary temperature, and that reduces sweating to a degree beyond the waterproof layer. Overall, pleased with this product...very good, but not perfect.
R**Y
GREAT shirt...wish there were woman sizes
LOVE LOVE LOVE this undershirt. I've suffered from hyperhydrosis since I was a kid and just discovered these products actually exist!!...I wear medical scrubs for work and have been shopping around for different brands of undershirt to see which works best for me. So far your this shirt is the most comfortable!!...the material is super soft and the underarm shield really withstands the amount of sweating I have to deal with daily. The sewen in sweat shields are not visible thru my scrubs at all (which other brand shirts DO show)My only complaint is that they only make men's sizes.I knew I was buying a men's but since it said fitted I figured a men's small would fit. It is still too loose for me to wear under my scrubs and the sleeves are longer than my uniform sleeves. I will def still keep the shirt because for winter sweaters or loose clothing I will still be able to wear it...however I would LOVE this shirt in a women's small.
D**H
FABULOUS Shirt- This actually works!
I took a chance and purchased this for my teenage son. He is a sweater. Not "pull the string as I walk away" sweater to keep you warm (ha), but a major waterworks sweat shop sweat-er. When he's playing sports, he deals with it, but doesn't like wet stains on his shirts just from walking down the hall at school. I handed him the package, and said "Let me know what you think". After busting out laughing at the appearance of the shirt itself, he gave it a try. INCREDIBLE!! This product does exactly what it was designed to do- it stops any sweat from making it thru to your regular shirt. Out of the package, it looks a little funny as the arms are heavier than the rest, but the fit is great and the arms don't sag when it's on. The fabric is soft and slick, much like the athletic shirts out there that have "underarm" in the name but don't have the same underarm protection. The extra layer under the arms is not so thick as to be uncomfortable, and it doesn't "crunch" or make noise. My son says he didn't notice the extra layers after a bit, and he is SO pleased that this works!!! Much better option than antiperspirant that does not allow your pores to breathe. I just ordered another, and will no doubt be purchasing a few black t-shirts for the fall. Older son is going to want some, too... THANK YOU, Ejis!!!
P**W
Ejis: the Shirt...and Life....Saver
Apparently turning 40 means you develop faucets under your arms - at least that's what my experience has been. I generally run hot but over the last year, my pits have taken matters into their own hands. It's incredible what they're capable of these days. I switched from deodorant to antiperspirant - that didn't work. I got new cotton undershirts - that didn't work. The combination of these things led to me consistently developing pools of sweat under my arms by 10am. Once I began ruining shirts, I knew I had to find a better solution. Ejis shirts are my first foray into "Sweat Proof" shirts. I haven't tried any others and after wearing these for over a month now, I can say they're life changing. No more pools, no more ruined shirts, no more worrying I'm going to lift my arm and scare the begeezus out of someone. My (outer) shirts are not only dry at the end of a long day, they don't even need to be washed (I wash them anyway, just making a point)! I wear an Ejis shirt nearly every single day. The shirts are trim and form fitting; I like it this way since I see no benefit to having a baggy undershirt. I generally wear a large shirt and so I ordered larges - I wouldn't suggest sizing up due to the fit; the fit is intentional. The materials they use are super soft and comfortable. Not sure if there's some science that goes into the underarm portion but from my perspective, its just a big ole maxi-pad for your underarm. I didn't really take any getting used to and when it worked, I chalked it up as a small price to pay. I have washed them a few times now and I refuse to hang dry my undershirts - they go directly into the dryer. No damage has been done, at least not yet but I'm anxious to see if washing/drying does have an impact. For the price, i would assume these last me 12mos, but if that doesn't pan out, I'll update this review. Thank you, Ejis, for developing a great solution.
N**Z
Only worked the first day…
I wore this shirt once and it worked well. Had all the confidence in the world to wear a light colored shirt the next day and BIG MISTAKE. Was embarrassed like crazy at work with huge armpit sweat marks. I thought maybe it was a fluke and tried it out a third time (that’s where the pictures attached a from) and still no luck. I wanted to try something different than the Thompson Tee. Was excited for this shirt because of how superior the feel and look is but it looks like I’ll be going back to TT now smh. Pros: Fit of the shirt, tightness around neck, ability to tuck shirt in without it hanging out/ lookin sloppy, and softness of fabric. Cons: Did not block sweat past the first day used.
L**E
Perfetta
Maglietta che fa esattamente quello che promette, non posso più farne a meno!
C**C
Gross
Shirts came looking used and reeked of the smell of vinegar!!!! I’m not sure why this could be but it’s disgusting
N**Z
Hemd bleibt trocken, besser als jedes Deo
Saugt Schweiß lange und zuverlässig auf, auch nach mehrfachem Tragen ohne waschen kein Geruch. Fällt groß aus
ب**ر
حبيت
المنتج طلبته لزوجي لدوامه ومره طلع مناسب وافضل التوصيل والسعر عند جودة المنتج مناسبه
E**R
Plus pratique avec de l'élasthanne
Ayant déjà acheté d'autres t-shirt de cette marque, je peux déjà en attester une très bonne qualité, avec pour seule défaut le fait d'être généralement très juste au corps même pour la taille sensée être la bonne, ce qui n'est évidement pas le cas avec de l'élasthanne et ce qui m'aurai éventuellement permis de faire des économies sans risquer d'abimer le tissu, malgré un prix légèrement plus élevé. Pensant également que cela implique logiquement une plus longue durée de vie du produit. Qui est ainsi bien plus agréable à porter.
Trustpilot
3 weeks ago
2 weeks ago