Let’s Get Personal: Do You Wear Underwear When Working Out?

run in underwear
Or you could do the opposite and JUST wear underwear to work out! Credit: Josh Pesavento (broma)

There’s no such thing as TMI on FBG, right? (And if you disagree, I recommend you click on this instead. It’s about the most G-rated thing we have.) I mean, we’ve discussed butt-chafing, pit stains, peeing standing up, and even the beauty of the BM. So, asking about going commando during workouts is pretty par for the course.

Here’s how I see it (I’m sure a lot of you will disagree): it depends. Yoga or running tights/capris? Commando. Running shorts on the trail? Commando. Running shorts at the gym? Underwear. Running shorts in a group ex class where you might have to do crunches? Just-out-of-the-wash underwear, preferably in a dark color. Workout of any kind at home? Eh, depends on the day and the risk of chafing. In my workout experience, as long as its comfortable, there’s no need for this and you’re in no danger of pulling a Britney-Spears-getting-out-of-a-car-circa-2007, you’re good to go sans undies if you so desire. What about you though?

Can’t see the poll? Click here to tell us if you wear underwear when working out

Now, this should make for some interesting comments. Share your workout-underwear truth below! —Jenn

Categories: ApparelTags: , , ,

This article was originally published on fitbottomedgirls.com.

We often receive products from companies to review. All thoughts and opinions are always entirely our own. Unless otherwise stated, we have received no compensation for our review and the content is purely editorial.



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  1. I go without underwear in tight workout capris, but not in anything else. Especially running shorts – I bet it’s more comfortable to go commando, but I’d be too afraid of someone seeing something!

    Still trying to convince my boyfriend it’s not weird to not wear underwear in the capris, though. I mean, it has a gusset! Clearly no underwear belongs in there!

  2. If I’m working out at home I’ll just throw on sweatpants or shorts (or sometimes whatever I slept in). If I leave the house I wear underwear.

  3. Uh yes why wouldn’t anyone not wear underwear. I sweat like a race horse down their (TMI)when i do serious cardio and then do to lift weights. If I didnt wear panties no one will use the weight machines after me lol. But one time in kettle bell class a woman wore shear tights and no undies and i saw all her goodies. I was horrified 🙁

  4. For me, it’s all about workout underwear. My personal favorite being Under Armor undies…or as I call them, “Rundies”. They are microfiber, don’t ride up, and are super comfortable.

  5. I never wear underwear when I work out at home unless there is fear of chafing. At the gym or other public setting I usually wear men’s boxer briefs. They don’t ride up like women’s underwear and they stretch.

  6. i never, EVER wear underwear! They build in underwear in those running shorts for a reason 🙂 🙂 And obviously, I can’t have lines (….or wedgies ha) when I wear yoga pants!

  7. Never wear with capris or long shorts. If I wore short shorts, I would wear undies. With regard to sweating, aren’t you supposed to wipe down the equipment and seats after you use them. Regarding the comment above, I think I’ll also wipe things down before I use them.

  8. I never do. With running shorts, all mine have built in underwear. With tight workout pants it’s not like anything jiggles (well, you know what I mean, I’m contained by the pants, so don’t need underwear to do that job) and my workout pants usually have some sort of reinforced crotch area with an extra layer of fabric.

    Most true workout gear accounts for what goes on in our pants and really removes the need. I think it then becomes preference, and I already have enough laundry, I don’t need to dirty extra sets of underwear just because I worked out in some!

  9. So, I tried sans undies in a new pair of capris and I did like not having any lines. BUT, what do you do about the very obvious sweat spots in certain nooks and crannies?? That was not so attractive.

  10. I sometimes go without when I wear tight capris, but it depends on the material – if they’re more nylon/spandex-y, it just gets too damp down there! But if they’re more of a cotton/poly blend, then it’s do-able.
    So what do the FBGs do?!

  11. I go commando EVERYWHERE. I’m sorry but I have done some cardio weight burn classes and sometimes my thong is so far up my bootie that it irritates it. I have the Underarmor undies but I’m sorry they’re pricey so I only have a couple for when I wear short that don’t have the undies included. Overall, it’s uncomfortable and I live in LA you cannot be caught dead with major pantie lines.

  12. I’m glad you ladies raised this topic because it’s one that I find super important! I am 100% for underwear. The idea of going commando and either getting 1) camel toe or 2) private part chafing is beyond scary. As a fitness fashion & trend expert on MizzFIT.com, I tell all my readers to invest in comfortable fitness panties that are built with 1) moisture wicking, 2) aren’t too tight or too loose, 3) have anti-microbial fabric and 4) are made to breathe. I know that sounds like a lot but as long as you rely on brands like Lululemon, Under Armour and Moving Comfort then you are in good hands. Going commando is just not healthy for your Vajayjay!!!! Trust me, even if you’ve gotten away with it once or twice without any trouble, trouble will eventually strike and that is not a place where you want or need it! Invest in fitness panties, ladies! Your Vajayjay will thank you and you’ll have a worry-free work out.

    That’s my 2 cents.


  13. Didn’t realize people didn’t wear underwear to work out……I wear a thong though during most gym excursions, at home it doesn’t matter.

  14. haha! I never actually thought about this, I wear them always unless I am competing in a triathlon or doing a mock try in which I’m wearing a tri suit which doubles as a bathing suit. Every other situation, undies for me!

  15. Try ChafeAway.com. Its a peel and stick body wrap thats smooth and comfortable to wear and it protects your skin from chafing and irritation.

    Smooth anti-chafing body wraps. Wear it on the skin to protect those sensitive parts of the body, simple to apply, non-latex and lasts longer than the gels. Chafe Away wraps bend and move with the skin. Protect any part of the body and custom cut to your contour.

  16. Always wear undies. Even the best work out gear, whether it be Lululemon, Athleta, Under Armour etc. stretches to the point where, if you happen to be standing behind someone in a weight program class, the lady bits are going to show. I really don’t want you to see what I have to offer so please be mindful and not show off what you have.

  17. At the gym, yes. But I normally run or do aerobics at home, and it’s a lot more comfy going commando. For what it’s worth, I never wear shorts, though.

  18. I go commando all the time b/c I wear capris or long exercise pants to workout at home, gym or go running. It’s a must to wear underwear under running shorts in the gym especially guys. Years ago, I saw a guy’s frank and beans. He was wearing running shorts and running next to me on a treadmill. It wasn’t pretty. A vision that hasn’t gone away.

  19. I always wear underwear while working out. However, I haven’t been able to find a good pair of workout undies that I like. I really want to try out the Moving Comfort hipsters, but I can’t find anywhere that sells them in Vancouver. Has anyone found them anywhere in BC?

  20. I don’t wear underwear. I wear a pair of spandex shorts with a pair of shorts over them. It works out real well and very comfortable.

  21. I personally think it’s weird to see girls not wearing underwear and that you can see things on them that most don’t want to, like if one bends over, you can tell they’re not wearing underwear.

    Not to mention the disgusting thought of sitting on a piece of workout equipment that one of them sat on and used. Most guys like to look and see the protruding vagina print and how their pants go up their bare crack. 99% do ot for vanity and in the spirit of being vain.

    There are way too many options of underwear (thong, boyshorts, etc.) that provide a seamless appearance as well. Some chicks are vain. I’m seeing this more and more now, so now young girls (under 18) don’t want to underwear under their yoga or workout pants. Monkey see, monkey do.

    And, I wish the chicks that say things like: I’m really sensitive down therr so I don’t wear underwear or wet underwear could cause me to have an infection. The second is true, but pack a spare pair of undies in your gym bag. In all honesty, the friction from the workout pants and not wearing undies can cause an infection. You’re welcome.

    Now can you all go back to having some decency and wear something under your damn workout pants. If you’re sole intent on going to the gym or to workout is to be cute and sashay around worrying about your pantylines, stay home.

  22. As a cyclist, Underwear for men and women is NEVER worn. Bike shorts should come with a contoured absorbent pad sewn in to provide padding as well as absorbing any fluids. Moisture and seams of underwear can and will cause chaffing and irritation.

  23. What a such crazy idea, however, i LOVE it. I always wear underwear almost time. But maybe, some time I will try to work out without underwear. I think that’s so comfortable and feel free.

  24. When I go running I literally were as little as possible. I would normally were short underwear boxer shorts and a sports bra and a pair of trainers. I run with three other girls and they were just as little as I do

  25. When at home just go nude ! You don’t need to wear any thing ! The feeling is wonderful ! Saves on washing so many clothes !!