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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

Would you tell a woman her gym leggings were see through?

165 replies

FeelingALittleWoozyHere · 30/05/2026 11:50

Regular gym class. Behind a woman today who was wearing black leggings, looked fine when she was standing but as soon as she bent over they were completely see through, almost like a pair of 30 denier tights. Could see colour and shape of underwear. Would you have told her at end of class?

I was planning on doing but she was chatting to another class member at the end and stayed on for the next class so couldn't grab her outside. Feel bad now but also wasnt sure how she would react??

OP posts:
Njuy · 30/05/2026 14:41

Probably those thin leggings from Primark, Temu, Shein and the like.

I don’t like see undies on show or showing through thin or light coloured clothing

NotAnotherMNUsername · 30/05/2026 14:55

She might already know

Forestgreenblue · 30/05/2026 15:14

Personally I wouldn’t!

However reminds me of the time I got changed at the gym - posh gym so had nice changing ‘bays’ - there was another woman getting ready at the same time

I was ready so went for a wee before I headed for my workout (loo was between changing area and gym) and spotted in the mirror that my gym leggings had a huge hole in the seam on my bum! Could literally see my bum crack!!

Walked back into changing room to get changed to go home as I had no other leggings with me - and the woman walked past me literally unable to control her laughter. I was facing her walking towards her so she wouldn’t be able to have seen the hole from that angle so she was obvious aware of it and was willingly hoping I would walk into the gym with the hole. What a bitch.

Please - if there is ever THIS situation tell the woman!!

FastFood · 30/05/2026 15:14

ponyprincess · 30/05/2026 13:01

To all of those who say you want to be told do you not look in mirrors to see how you look?

What you see in the mirror and what can be seen in the street with actual daylight is very different.

Flamingojune · 30/05/2026 15:17

At least they weren't scrunch bum

DontShoutInMyEarholeTracey · 30/05/2026 15:18

OriginalUsername2 · 30/05/2026 12:10

I wouldn’t, I’m not sure why.. maybe because she might say “So what, don’t look!” or tell me to fuck off? Or be so mortified she never comes back, then I’d feel shit?

Exactly. Not your concern really OP.

Moveoverdarlin · 30/05/2026 15:18

No!!

Viviennemary · 30/05/2026 15:22

No I wouldn't have. It's only underwear.

BunnyLake · 30/05/2026 15:24

No I wouldn’t. She’s old enough to work out what she’s wearing just like the rest of us, and I don’t want to get my head snapped off.

lessglittermoremud · 30/05/2026 15:39

I think if she cared then she would have checked before putting them on?
Ive just had some 3/4 length black leggings arrive for work. I work in an environment that involves a lot of bending, scrabbling around on hands on knees, playing games etc as work in a preschool.
The first thing I did when they arrived (I had also checked the reviews to see if anyone had mentioned they were see through) was to put them on and ask my DH if he could see through them.
He thought it was hilarious, I was bending trying to touch my toes, kneeling etc all the different poses to try and see if they were.
Thankfully the consensus was that they weren’t unless I really put my bottom stretched into the air and even then if I had black knickers on no one would know, plus I plan on wearing them with longer tops.
I wouldn’t tell a perfect stranger, I quite often see mums on the school run in front of me with see through leggings on, despite seeing them practically everyday I wouldn’t tap them on the shoulder and advise them that I could see their underwear whilst walking up the hill behind them.

TheBloomingDahlia · 30/05/2026 15:44

If it was a stranger I’m not sure. But I did tell my friend after I did a class with her - I just said “did you know your leggings are see through?” She didn’t. I think the majority of people wouldn’t want their leggings to be see through but might not think to check or might not have bright lighting in their house, so therefore it’s nice for someone to tell them.

I once went out in a dress I’d worn a few times before and suddenly realised it was see through in the sunlight, I wish someone had told me on one of the previous times I’d worn it!

Toober · 30/05/2026 15:47

In very obvious situations like 'skirt in knickers' mentioned above then yes, but for see through leggings I wouldn't. I'd think there's a possibility she knows and it doesn't bother her.

You sound like a kind person OP, it's weird that at least one PP has assumed you're trying to police someone's clothing instead of saving them (perceived) embarrassment.

morgan56 · 30/05/2026 15:49

No. There’s been a woman in my class who has a hole in her leggings 3 weeks on the trot and I can literally see her a-hole lol. She can definitely feel it, I would never tell her though.

compactmotif · 30/05/2026 15:57

EarringsandLipstick · 30/05/2026 14:23

That’s a mad thing to be mortified about! I often wear coloured bras underneath light coloured tops, deliberately, including for work. I like the look.

Where on earth do you work that it's acceptable to have your underwear on display like that?

It would be considered unprofessional and inappropriate where I work.

momager22 · 30/05/2026 16:03

No. Mine are a little bit see through in certain lights. But I choose to wear them as they are my most comfortable pair that stay up.
I do however make an effort to wear knickers that don’t show under them (beige, high leg cut) as black shoes through them the worst.
I don’t mind seeing underwear in the gym - women wear little bras and some men are shirltless so I could get offended by seeing the outline of some knickers

Fizzybluewater · 30/05/2026 16:14

parkezvous · 30/05/2026 12:37

Nope. Saw a woman out shopping yesterday with cycling shorts and I could actually see the shape of her public hair.

Urgh.

Breadcat24 · 30/05/2026 16:16

i did and she continued to wear them week after week- I think she liked the attention. Particularly grim if behind her in spin

basoon · 30/05/2026 16:41

Nope

BCBird · 30/05/2026 16:53

It's horrible when you have to witness this.

mathanxiety · 30/05/2026 17:15

No.

Just look away if it bothers you.

OchreReader · 30/05/2026 17:19

EarringsandLipstick · 30/05/2026 14:23

That’s a mad thing to be mortified about! I often wear coloured bras underneath light coloured tops, deliberately, including for work. I like the look.

This was years ago and it most people would have classed it as a wardrobe malfunction at that time (except my forward thinking colleague). Perhaps I unwittingly started a trend 🤣

mathanxiety · 30/05/2026 17:19

EmeraldRoulette · 30/05/2026 14:33

I see so much of this I can only assume that people know and that it's a trend.

I overheard two lads at the bus stop discussing it -with one saying that he's fine if his girlfriend dresses like that and the other saying absolutely not. It must be a choice.

so no, I wouldn't say anything.

There is a lot more wrong with the mindset of teenage boys talking like this than the see through leggings.

EmeraldRoulette · 30/05/2026 18:19

@mathanxiety for context

A woman walked past dressed in that kind of way

One of them asked the other "how would you feel if your girlfriend dressed like that?"

And the reply was "I think it's quite cute, I would be alright with that"

And the first guy said "no I would not like that...there's something about it, that just isn't quite right."

I realise it sounds horrible, but it was actually okay. I think they probably would've had a different conversation if they weren't maybe three women standing at the bus stop?

they were very non-intimidating and I say that as somebody who is easily intimidated.

this was outside a local college so they would've been 16 - 18. I would say it was a conversation for indoors though!

TheRealMagic · 30/05/2026 21:28

Breadcat24 · 30/05/2026 16:16

i did and she continued to wear them week after week- I think she liked the attention. Particularly grim if behind her in spin

Or she just didn't care?

One of the reasons I think it's not kind to tell her is that she might feel expected to stop wearing them/judged if she continues wearing them, despite actually thinking it's fine herself.

FieryA · 30/05/2026 21:58

No. Some women wear such leggings on purpose. And even if she didn't, it's really her responsibility to ensure that her underwear is not visible. I wouldn't say anything, unless it was torn.

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