I have enjoyed wearing these boxers. It is great knowing that I am controlling my sweat instead of it controlling me. I don't have to worry about sweat stains or marks anymore.– Cody M.
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Our sweat proof boxer briefs with fly are the ultimate solution for men who want to avoid embarrassing wet marks and odor from excessive sweating. The ultra-thin waterproof layer protects your butt, back of the legs, and crotch from perspiration transferring to your pants.
Experience “Wearable Confidence” with Ejis sweat proof underwear.
Our boxer briefs fit true to size so we generally recommend choosing the same size you normally wear.
Fabric: 95% TENCEL™ Modal x Micro and 5% Spandex; fused with real silver (excludes waterproof layer and trim).
Care: Machine wash in cold or warm water, inside out, with like colors. Tumble dry low. Do not iron, bleach, or dry clean.
We have an unbeatable 45-day First Product Guarantee. Try out one single sweat proof undershirt and one single pair of sweat proof boxer briefs and put them to the test. If they don't make you feel more confident and keep you looking dry, we've got you covered with a no-hassle size exchange or refund – no need to return the product.
Check out the FAQs for full details and take advantage of this no-risk offer. Valid for single units only. If you order more than one of the same product, only one is covered by the FPG. Bundles or multi-packs are not eligible for the First Product Guarantee.
All products ship from our US distribution center. We offer several options for US and international shipping, which can be viewed at checkout. All orders are shipped with a tracking number. Visit the FAQs for more details.
Order today for:
Unrestricted access. Add our Sweat Proof Boxer Briefs with Fly to your cart today, and upgrade your underwear game.
Forget all the lotions, potions, creams, and powders that claim to tame your sweat (and fail).
Meet Ejis - the easy, fast, and guaranteed way to eliminate sweat stains from your clothes.
Our Hyperhidrosis Treatment Guide (valued at $19.95) is yours free with purchase!
What's Inside:
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I was skeptical and doubted on if they actually would protect my bum. I wore them with khakis at a medical conference on leather seats. They do work! Now keep in mind it will somewhat lock in the heat from your butt. So you will have that, but tried and true, it won’t leak through your pants. I now own what, 12 pair. Had them for well over a year and a half. One black pair is just starting to somewhat split a bit but all the others are holding up just fine. Let them air dry inside out after a warm wash.
These underwear are game changers! As someone who sweats excessively, it’s nice to know that I’ll never get up from sitting and have a sweat mark on my back side! In other words, they are a massive confidence booster! The only negatives are the price and a couple of minor issues. The waistband sits somewhat loose, but as long as you wear pants with a snug waistband, it’s not a big issue. Overall, I love them, and will most likely be buying more in the future!
I have suffered from hyperhidrosis all my life and this product has changed my life. I don't have to always be worried about having sweat marks on my pants and people thinking it's something else, as most people don't even know what hyperhidrosis is. I love the product and recommend it to everyone who has the same problem.
I could not be more pleased with how well your product works. I'm finally confident in wearing light colored pants without having the embarrassment of sweat stains. Your product is truly remarkable. Thank you.
My son has already told me that he plans to buy a full 12 pairs at some point he loves them so much! They've given him so much more confidence, which is the biggest blessing to a mother 🙌 Thank you!
Such a relief to have confidence to go out with no sweat marks appearing shorts
Thank you for leaving a review. We are so happy to hear you love your Ejis sweat proof boxer briefs. Best, Gigi Ejis Customer Support
These work great for my teenager who excessively sweats just sitting around. He like that they are thin but still do the job.
Thank you for leaving a review. We are so happy to hear your son likes his Ejis sweat proof boxer briefs. Best, Gigi Ejis Customer Support
I ordered one pair of the sweatproof boxer briefs to try them out. It was good to see the FPG that Ejis offers. They def stand behind their products. I received the boxer briefs. They fit good. Very comfortable. They solved a problem for me. I ended up buying 3 more pair! Great products!! Great service!!
Thank you for sharing your experience. We are so glad you love your Ejis sweat proof boxer briefs. Your satisfaction is our top priority! Best, Gigi Ejis Customer Support
These boxer briefs are amazing. They effectively absorb sweat, which is especially helpful during the summer months when it can be embarrassing to have a sweat patch on the backside. However, one downside is that the elastic waistband tends to stretch within the first few months, so over time they don’t stay in place as well.
Thank you for leaving a review. We are so glad you love your new Ejis sweat proof boxer briefs. And, we greatly appreciate your feedback about the waistband. Best, Gigi Ejis Customer Support
Thank you for leaving a review. We are so happy to hear your sweat proof boxer briefs effectively stop sweat stains. Best, Gigi Ejis Customer Support
My 14 year old son says these are very comfortable, and he is hard to please. They do help with keeping sweat from showing through.
Thank you for your review. We're so glad our sweat proof boxer briefs are comfortable and effective for your son. Best, Gigi Ejis Customer Support
My overall experience was positive using these underwear, however I would recommend going a size up when purchasing as mine tend to slide down with movement; showing off a “Plumbers cr##k”. But far less embarrassing than wet spots!
Thank you for sharing your experience. We appreciate your feedback about sizing. We are glad you are pleased with the performance of your Ejis sweat proof boxer briefs. Best, Gigi Ejis Customer Support
My new EJis are worthwhile. Provide comfort and protection by pretty much wicking away moisture, for me, sweat. Greast on a long plane ride, which I do often. I have a few pair now and the one shortcoming is they never pull all the way up in the back. My "coin slot" shows when I bend over or am playing pickleball ior just working out. I have a slim butt, so it's not my build. Is it in the design and manufacture? I was planning on making EJis my only underwear, but not until I'm confident that has been alleviated in one way or another. Thanks. Love your product, "short" of that.
Thank you for sharing your experience. We appreciate your feedback. Your satisfaction is our top priority! Best, Gigi Ejis Customer Support
As promised, I am very glad about it actually, THEY ARE SWEAT PROOF! The thing is that the waist band is very loose, since they are heavier than normal boxer briefs, due to the protecting material they have inside. So, I constantly need pull them up. Thus the band on the waist should be >>> more tight <<<. If you fix this, then to me it should be the ultimate underwear.
Thank you for sharing your experience. We appreciate your feedback about the waistband. Best, Gigi Ejis Customer Support
I accidently ordered the boxer briefs with a pouch rather than the normal opening. Customer service told me how to send it back. Unfortunately, it was two out of the five packed ones that were opened, though not worn. I did send them back at a cost of $28.
Crack is always exposed. Definitely not happy with the design. So many boxers are this way and I was hoping these would be different!! Oh well..
I’m sorry that your Ejis sweat proof boxer briefs aren't high enough in the back for you. We are constantly working to improve our clothing and thank you for sharing your experience. Best, Gigi Ejis Customer Support
My 1st 2 pair of sweat proof are good so a bought a 2nd pair ima put theae thru a rigid excersise workout
Thank you for taking the time to leave a review. We are so glad you are pleased with the quality of your new Ejis sweat proof boxer briefs. Best, Gigi Ejis Customer Support
Bought these for my son, I guess he really likes them because he asked me to buy him another pair.
Thank you for taking the time to leave a review. We're so glad your son is happy with his sweat proof boxer briefs. Best, Gigi Ejis Customer Support
Thank you for leaving a review. We are so happy to hear you are pleased with the quality and value of Ejis sweat proof boxer briefs. Best, Gigi Ejis Customer Support
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