A smiling secondary school boy in black slim fit school trousers, navy blazer and striped tie, standing on the steps of his school
Home / Boys / Trousers / Slim fit
Slim fit, slim leg and skinny

Slim fit school
trousers.

Black, grey and navy school trousers with a narrower leg for a smarter, modern look, plus a skinny fit for boys who want the closest cut. Junior sizes by age, senior sizes by waist.

Ages 2 to 17junior sizes by age
24" to 50"senior waist sizes
22 stylesslim and skinny
From £11.50junior slim fit

Which slim fit
does he need?

Pick the one that sounds like your child and we will show you the styles that match.

FREE Economy delivery on orders over £75 · delivery dates on every product

All slim fit trousers

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Easy returnsall done online in 3 steps
Try them onin West Norwood or East Ham
Slim or skinny?

Three cuts,
side by side.

Regular fit

A straight leg with room through the thigh and knee. The classic school trouser. See regular fit

Slim fit

Narrower through the leg for a smarter, modern look, but still with room to move. Most of this page.

Skinny fit

Our closest cut, narrow from the thigh right down to the ankle. Some schools do not allow it, so check first.

Junior and senior sizes

From age 2
to a 50" waist.

Slim fit runs from primary school right through to sixth form, so there is a size for every stage.

Junior sizes

Sized by age, starting at 2 and running to 13 or 17 depending on the style. Half elastic and adjustable waists help younger children get a good fit.

Senior sizes

Sized by waist in inches, from 24 up to 50, for secondary school and teenagers who have outgrown age sizes.

Leg lengths

Several senior styles come in short, regular and a 34 inch long leg. On some styles the largest waist sizes come with an unfinished leg, ready to take up to the exact length.

Not sure of
the size?

Slim fit trousers have less room through the leg, so measure rather than guess. Take his waist and inside leg, then choose by those two numbers rather than by age.

Read the school trouser fit guide

Each style has its own size chart on its page.

Grey slim fit school trousers with a narrow leg and sharp crease, the hems sitting neatly on black school shoes
A narrower leg and a clean hem that sits neatly on the shoe.

How to measure

WAIST INSIDE LEG
  1. Waist: measure round his middle, where his school trousers sit, over a thin top.
  2. Inside leg: measure a pair of trousers that fit well, from the crotch seam to the bottom of the leg.
  3. Send us both numbers on WhatsApp if you would like us to check.

Not sure of the size?

Send us his age, waist and inside leg and we will tell you which size to order.

Ask on WhatsApp

Try them on first

Pop into our West Norwood or East Ham shop and try slim and regular side by side.

Our shops

Questions
parents ask.

What is the difference between slim and skinny?

Slim fit is narrower through the leg than a regular trouser but still has room to move. Skinny fit is our closest cut, narrow from the thigh right down to the ankle.

Will my child's school allow skinny trousers?

Some schools do not allow skinny or tight trousers, so check the uniform policy first. Our slim fits are a tailored cut rather than a tight one.

Junior or senior sizes, which do I need?

Junior trousers are sized by age. Senior trousers are sized by waist and leg in inches, so they suit secondary school and teenagers who have outgrown age sizes. If he is between the two, measure his waist and go by that.

Can I get a longer leg?

Yes. Several senior styles come in short, regular and a 34 inch long leg. For very tall boys we also have an extra long trouser with a 36 inch inside leg on our long leg page.

Can girls wear them?

Yes. They are cut and sized as boys trousers, but plenty of girls choose a slim fit. Buy to the waist and inside leg measurement, or see our girls school trousers.

What if they do not fit?

Returns are easy and all done online in 3 steps. You can also try them on in our West Norwood or East Ham shop.

About our slim fit trousers

Slim fit and skinny
school trousers.

Black, grey, navy and charcoal

Every style here comes in black, and most come in grey and navy too, with charcoal on several. Check your school's uniform list for the colour it asks for.

Brands you know

Our slim fits come from Zeco, Banner, Winterbottom, Innovation and Ayra, from easy everyday junior styles to tailored senior trousers.

When slim is not the answer

If the waist fits but the leg is too long, look at our plus size school trousers, cut wider at the waist and shorter in the leg. For younger children who find fastenings hard, our pull up trousers include a slim fit with a half elastic waist. Tall and slim boys should also see our long leg trousers.

Browse all boys school trousers, regular fit trousers or girls school trousers, or read our school trouser fit guide. Free UK delivery on orders over £75.