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Primary education

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Mums of very thin reception girls, pls help!

261 replies

kisaki333 · 13/07/2026 22:12

I have ordered (and mostly returned) at least £300 worth of school trousers in the last month I can't find a single one that looks ok and fits.
Some of the ones with adjustable waist can be adjusted to fit the waist but they look like she did a big poo in her nappy (she obviously doesn't wear one! )
To make it worse, all the adjustable waist ones are polyester. ALL the cotton pull ones I found don't have an adjustable waist. Whyyyyy???
So far we tried:
Next (best results so far but still bad)
M&S
ASDA found one slim fit that has really bad reviews saying it's much too slim lol. This one is ok, but feels poor quality.
Sainsbury's
Various Amazon brands with 0 success

Anyone managed to find something that actually looks ok on a slim petite 4.5yo and with good quaility? Preferably cotton?

And before you say about dresses, i don't want her in dresses, she is very active and a climber, she won't be able to do everything she wants in a dress.

In day to day she lives in leggings but the school won't accept those (how crazy is that, why not?!)

OP posts:
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5
FckThisShit · 14/07/2026 09:36

I've always used the Asda slim fit adjustable waist ones and DD is almost 12 now. Not sure why they have bad reviews.

fashionqueen0123 · 14/07/2026 09:37

shazshaz · 14/07/2026 08:34

For the summer I would buy the smallest gingham dress and take the hem up. Make the hem large and folded twice so you can let it down multiple times. For winter stick with dresses, then have leggings underneath with socks. As long as the leggings are reasonable quality and don't bag at the knee, it very much has the look of a dress and tights. I used to have to do this with my 2 girls who hated the feel of tights.

I would echo this.

Try Sainsburys TU for dresses.

vickylou78 · 14/07/2026 10:00

My school don't allow leggings on their own but are fine with them under a pinafore dress instead of tights so my daughter does that on very cold days. Rest of year just cycling shorts underneath pinafore dress.

Trainup · 14/07/2026 10:02

kisaki333 · 14/07/2026 08:04

Not with my little one. She is an active explorer... pretty much need to wash everything she's in after 1 day.

I think you’ll find school is different from nursery.

MaggieBsBoat · 14/07/2026 10:05

My very skinny kids (male and female) wore black jeans from H&M and when they were old enough River Island do good skinny fit trousers.
I totally feel your pain. One of my sons was in age 5-6 underpants when he went to high school so I know how hard it is!

SJM1988 · 14/07/2026 10:08

My DS not DD but we had to settle for Asda Slim Fit. These were the only ones that looked ok and fitted well. They surprisingly lasted the whole year, I though they would wear out before that as they felt super thin. No holes and for a boy playing football that is a plus! We still use these every year now. I found it impossible to find cotton ones that fitted. The polyester are fine and 99% of the time he lives out of shorts anyway (even in winter).

DD we are going for dresses with cycle shorts or tights. She is very active too and copes with dresses and cycle shorts for nursery. She'd rather that than trousers over leggings.

Greengage1983 · 14/07/2026 10:15

And before you say about dresses, i don't want her in dresses, she is very active and a climber, she won't be able to do everything she wants in a dress.

Thick black tights in winter, cycle shorts in summer.

Greengage1983 · 14/07/2026 10:18

Trainup · 14/07/2026 10:02

I think you’ll find school is different from nursery.

I found reception to be very similar to nursery in that regard. They spend most of the day playing outdoors in the mud, painting etc. Plus they spill food down their front and get their sleeves in their dinner. Year 1 calms down a bit on the messiness front.

WimbyAce · 14/07/2026 10:18

Wonderfulstuff · 14/07/2026 08:58

H&M girl's school trousers have an adjustable waist band.

But I'm more intrigued by all the hardcore climbing a reception aged child is going to do at school that means a pinafore is unsuitable!

Agreed! I think you are just giving yourself issues tbh. Both mine been fine in pinafore and then the summer dresses.

Hotdayinjuly · 14/07/2026 10:27

I mean you sound a bit precious about how active she is. 1000s of little girls manage to be active in their dresses. Can you not say ‘DD none of the trousers fit so let’s try a pinafore’ mine didn’t like tights so she wore either long socks or grey leggings (look like thick tights).

kisaki333 · 14/07/2026 10:37

Hotdayinjuly · 14/07/2026 10:27

I mean you sound a bit precious about how active she is. 1000s of little girls manage to be active in their dresses. Can you not say ‘DD none of the trousers fit so let’s try a pinafore’ mine didn’t like tights so she wore either long socks or grey leggings (look like thick tights).

Oh good, i was wondering when the insulting would start.
All I did was ask for the help of other mums with thin daughters. I want advice on what cotton trousers they found that fit.
Opinions on whether she should wear dresses or not are offtopic and useless to me.
And personal insults are also unwelcome.
Cheers

OP posts:
GargoylesofBeelzebub · 14/07/2026 10:46

We ended up buying age 3 slim adjustable trousers in a longer length from M&S to avoid the nappy effect.

SheilaWilde · 14/07/2026 10:52

Just thread elastic through the non- adjustable waist ones - to make your own elastic waist.

Catopia · 14/07/2026 10:52

Sainsburys do an age 3 as well as normal school age so they might be worth a go?

thirdfiddle · 14/07/2026 10:52

Hotdayinjuly · 14/07/2026 10:27

I mean you sound a bit precious about how active she is. 1000s of little girls manage to be active in their dresses. Can you not say ‘DD none of the trousers fit so let’s try a pinafore’ mine didn’t like tights so she wore either long socks or grey leggings (look like thick tights).

Would you say that to a slim boy?

It is actually a known concern that girls become less active than their male peers over the course of their school careers. Maybe what clothes they are put in plays a subtle role in that. On average, not something you'd notice at an individual level, obviously plenty of girls are still very active.

Smartiepants79 · 14/07/2026 10:59

I have to say that, as a teacher in eyfs, I have never noticed that skirts or dresses stop the girls from doing exactly as they please! They climb, run, ride… whether your child will
wear them or not is another matter.
I would advocate dresses with long socks and cycling shorts under.
Sadly when something has a smaller market there is less choice. My 2 were tiny and just had to make do with the smallest things we could find. I shortened stuff and put in elastic waists myself!

N4meChng · 14/07/2026 11:06

MachineBee · 14/07/2026 08:06

But how much exploring and climbing will she actually be doing in school? It’s very different to nursery.

I could tell what DS had done and eaten by his uniform every day in reception. Schools tend to let reception children spend lots of time outside playing and climbing because it’s good for their core strength, which is important for writing.

DS also used to play various games involving exploring in most dusty and dirtiest areas of the school well into KS2, so even then he needed clean uniform every day

Hotdayinjuly · 14/07/2026 11:06

thirdfiddle · 14/07/2026 10:52

Would you say that to a slim boy?

It is actually a known concern that girls become less active than their male peers over the course of their school careers. Maybe what clothes they are put in plays a subtle role in that. On average, not something you'd notice at an individual level, obviously plenty of girls are still very active.

Which bit?

I don’t think that I would send my son to school in a dress, no, but I also don’t think my daughter’s school pinafore would have prevented her from being as active as any little boy in a pair of (cotton) trousers.

FlatStanley50 · 14/07/2026 11:09

GargoylesofBeelzebub · 14/07/2026 10:46

We ended up buying age 3 slim adjustable trousers in a longer length from M&S to avoid the nappy effect.

This is what we did too. I bought age 2-3 in reception.

IceLollly · 14/07/2026 11:11

She’s 17 now but I did find jersey trousers for DD at one point. I don’t know why they aren’t more of a thing. Bridged the gap between trousers and leggings, as I don’t like leggings at school.
dresses and leggings sounds okay when it gets colder.

HappyPalaces · 14/07/2026 11:19

My DD was very petite at that age. I only did dresses and skirts for school and then she wore cycling shorts underneath. I feel for you but as you can see finding trousers that work will be challenging.

Edit: just saw your note re: tights. My DD also wouldn’t wear tights so knee socks worked.

Slightyamusedandsilly · 14/07/2026 11:20

@kisaki333 there 100% is a market for jersey school uniform. It's such a gap in the market. It is needed desperately for neuro diverse children (textures) as well as exceptionally small/slim/large/bigger built children.

The company that hits on this idea will make a fortune.

Yetone · 14/07/2026 11:20

I think you have to accept that it is either dresses and shorts ( with long socks if needed) or you pay for tailoring for trousers or you alter them yourself. We have the same problem in our family. I have sewn elastic in the inside of my granddaughters school trousers. Yes they look bunched up but so be it.

FairKoala · 14/07/2026 11:31

kisaki333 · 14/07/2026 10:37

Oh good, i was wondering when the insulting would start.
All I did was ask for the help of other mums with thin daughters. I want advice on what cotton trousers they found that fit.
Opinions on whether she should wear dresses or not are offtopic and useless to me.
And personal insults are also unwelcome.
Cheers

The advice is get a dress.

Not too sure how at school she is going to be “active”. It isn’t a nursery setting
She will be sat down for hours of the day and not sure what sort of thing she is going to get up to to ruin her trousers in a tarmaced play ground. She won’t be anywhere near mud or trees or anything that is dirty.
There are rules to follow

Take uniform off as soon as she gets home. You certainly don’t need 4 pairs of trousers

WarmLilacHiker · 14/07/2026 11:33

kisaki333 · 14/07/2026 08:04

Not with my little one. She is an active explorer... pretty much need to wash everything she's in after 1 day.

Do not understand how some people have wee kids that manage to keep things clean all day! My 3 year old comes out of nursery filthy yet some kids are fine, when he's with me he doesn't seem to be doing anything majorly different than the others but there's no way he could wear his trousers to nursery for a couple of days in a row!