I feel way more comfortable running now. I nearly gave it up all together before I found Double Undies!!

I have to say, when I opened the pack, I wasn't sure if these were going to work for me....but after wearing them walking, running, lifting weights, gardening and even an impromptu swim, I'm completely converted! They don't move AT ALL (even when leggings slip), so comfy, and do exactly what they're supposed to do. Great product!
I'm usually a NZ size 10 (occasionally 12) and went for size M, which seems to be perfect.
Customer service is outstanding, cannot recommend highly enough. I'll definitely be buying more.

Brought these for running and tried them for the first time during my first Hyrox. They are great, comfortable and work. I want to get another pair.

Not only seamfree but no leaks or odour (especially on leg day when it's most needed)! The only undies I can confidently wear at the gym!

Ordered one pair to trial. They definitely live up to the hype, and I will be ordering more. Love them

I use the double undies briefs for my long runs and they keep me dry and no chaffing so win win for the undies. I will definitely be buying some more.

I have used the brief and the thong, they both work- gives you confidence. would recommend.

From my very first interaction, I felt like I was supporting a real person and a grassroots business rather than just another online store. The customer service is genuinely second to none.

The G-string itself is surprisingly comfortable. It’s completely invisible under tights and, best of all, gives me so much confidence during workouts. I’m no longer worrying about leaks or rushing to the bathroom before every session—I can just focus on training.

For sizing, I initially ordered a medium because that’s what I wear in tights, but I found the small fit me much better and was even more comfortable. When I contacted the team to exchange the two unworn pairs from my 3-pack, they went above and beyond and organised FedEx shipping so I had them in time for my competition. That level of service is rare.

Standard postage is a little slower, but with customer service like this, it’s a trade-off I’m more than happy to make.

I’m already planning to order the beige pair next… and maybe even branch out into lighter-coloured tights now too!

Love these, so comfortable. No more stressing about leaks at the gym.

I got these to wear while running and they work a treat! So happy and will buy more.

These are the best things since sliced bread - using the squat machine usually causes me issues … not with my new undies - I am so happy with my purchase - 🥰

Love them! Makes me have more confidence in the high impact stuff for CrossFit

I’ve tried many leak proof underwear but the fit was always uncomfortable. These double undies are the first comfortable pair I’ve purchased and I’m about to purchase more!

These are the best undies I have come across, their comfortable and I must say reliable, thank you double undies

as a menopausal woman, who was also morbidly obese i figured the only way i was going to be able to get back into exercise was by putting up with a large, uncomfortable pad, meaning i would be back to tying up my jacket around my waist to hide the bulk. but then i found Double undies. First i started with the g string version and had just gotten use to the benefits i found from them, and then they brought out the Briefs and so i brought them. they are now a complete staple in my everyday wear and it doesn't matter if i'm riding my horse or lifting at the gym, or even going for a run, i know my secret but no one else knows. 11 kgs down in weight and no embarrassing leaks to deal with

Double undies been part of my strongman and women journey and what can u day its one if the best product specially with all my heavy lifting 🫴 i really recommend this product and the quality is everything 💯

Awesome to wear feels comfortable we doing squats no more wet marks at the back worth every cent.

I can now safely wear another colour pant/tight other than black! Sweat in embarrassing places not a problem!

I bought these undies because I'm sick of wearing bulky period undies under my gym leggings to catch leaks. I love how they offer the same absorbency, without feeling like I'm wearing a nappy! They also dry so much faster. I can't recommend them enough!!!

I have both the leakproof brief and a thong, and they’re both great! I do powerlifting and experience leakage in heavy lifts, and these keep me dry and confident (am no longer worried about any leaks). The black is not visible with my blue bike shorts and no panty lines visible either. They’re comfy, and they work brilliantly. Love ‘em!! Thank you 🙏🏻 🫶🏻

​I have never been a thong wearer, so I was definitely skeptical, but these are surprisingly comfortable.
​I wear them for running and high-intensity cardio classes, and they are amazing—totally leakproof, unlike a lot of other brands I've tried that promise the same thing but don't deliver. They stay completely secure, don't ride up, and give me total peace of mind during heavy workouts.
​They are definitely on the pricey side, but because they actually do what they say they do, they are 100% worth the investment. Highly recommend!

I used to only wear full brief period knickers in the gym.. but these new thongs have made me so confident (in & out of the gym!) No leakage or VPL, plus make me feel oober feminine! 🙌

I thought I'd wait after a few uses before posting a review. I am so happy with these this undies!! They keep me dry throughout workouts. I've tested them in a variety of cardio and weight sessions. I never get that damp feeling like I have done with some underwear brands. There is no Camel toe nor is there movement. They stay in one place!

Im an in-between size so on reading reviews went with the larger of the two sizings and they fit like a dream. Thank you for creating a brand of underwear that builds confidence that no accidents in the ring or in the gym will occur. I'm forever grateful.

Started with one pair to see if they were worth the cost... they did not let me down! I wouldn't go to the gym in anything else now. I got them not long after I started at a new gym and the difference in my confidence when wearing them is 10 fold. I can work hard, not worry about sweat patches or anything else. If you are thinking on it like I was, do it they are worth it!

Wow, thanks so much for a marvelous invention, I am running long distances with peace of mind now, thank you, thank you!