How Should Barrel Leg Trousers Fit? A Simple Guide

Barrel leg trousers should sit neatly at the waist and hip, then carry their room and volume through the thigh and leg before tapering in again towards the ankle. That roominess through the leg is the design, not a sizing mistake, which is why most people are best in their usual size rather than going up. Once you know where the shape is meant to hug and where it is meant to be generous, the fit becomes much easier to judge, whether you are buying in store or online.

This is one of the questions we are asked most often, so here is a clear guide to how barrel leg trousers should fit, how to choose your size, how fabric changes the feel, and how to wear the length in a way that flatters. For more on putting outfits together once the fit is right, see our complete guide on how to style barrel leg trousers.

Where a barrel leg should sit on the body

A barrel leg is narrower at the waist and hip, holds its shape and volume through the leg, then comes in again slightly at the bottom. The trousers anchor at two points, the waist and the ankle, with the curve happening in between. When the fit is right, you can see your waistband and the neat line across the hip, and the volume is all in the leg where it belongs.

On our Billie Barrel Leg Trousers, narrow vertical front panels and a seam placed towards the centre of the leg do a two thirds, one third job. That draws a vertical line down the leg and breaks up the width, so you get the contemporary, roomy shape without it feeling overwhelming. If your trousers feel as though they are widening you all the way up rather than nipping in at the waist and hip, that is usually a sign the waist is too big rather than the leg being too wide.

What size should you take in barrel leg trousers?

Take your normal size. Because the volume is built into the leg, there is no need to size up to get the relaxed shape, and sizing up tends to leave the waist gaping when you sit down. Hayley is five foot eight and a size eight to ten, and wears a ten in the Billie. The cut is designed to skim the waist and hip and be generous through the leg at your usual size.

One small thing to know is that denim can run very slightly snugger than the cotton twill trousers, so if you are between sizes in the jeans you may prefer the larger of your two sizes. If you have a smaller waist and fuller hips, a stretch style will hug you more kindly than sizing up in a rigid one, and if you do go up in a non stretch pair, a belt will hold the shape at the waist. Our size guide measurements sit on every product page, so the easiest check of all is to measure a pair of trousers you already love and compare.

How fabric changes the fit

Fabric is the part most people forget to consider, and it makes a real difference to how a barrel leg feels and behaves. Always check the label and think about how you want to wear them.

The Billie Barrel Leg Trousers and Billie Barrel Leg Jeans are made from structured one hundred per cent cotton. Cotton holds its shape and keeps that clean, sculptural line, which is exactly what the barrel shape needs. It can feel a little firm when you first put it on, so in the changing room do bend, sit and move to check you have room. Cotton gives a little over time and softens with wear, so allow for that rather than sizing up for the first wear.

If you want give and comfort, the Emmie Barrel Leg Jeans are the softer take on the shape, made with a touch of elastane for stretch and recovery. They are a subtler, slightly narrower barrel, and they are true to size, so again take your usual size. Stretch is the better choice if you move around a lot, sit for long stretches, or want a fit that works with curves rather than against them. The thing to look for in any stretch denim is good recovery, so it springs back into shape and does not bag at the knee or seat through the day.

Getting the length right

Both lengths work, so this comes down to height and how you want to wear them. One of our models is five foot eleven and wears the Billie full length. Hayley is five foot eight and rolls hers to finish just above the ankle. Showing a little ankle is a clever trick because it breaks up the proportions, in the same way that a glimpse of wrist or collarbone does, and that stops the trousers feeling overwhelming if you are new to the shape.

The Billie is easy to turn up, so you can adjust the length to suit your height and your shoes without any alteration. As a rule, a rolled hem with a little ankle on show feels relaxed and current, while keeping them full length feels slightly more formal, especially in a neutral like ecru. The rise sits around the belly button on most of our styles, which is a comfortable, flattering mid rise that suits tucking a top into.

Three quick fit checks before you decide

If you only do three things, do these. First, sit down. The waist should stay put without gaping at the back, which is the clearest sign you have the right size. Second, bend and move, particularly in structured cotton, so you know you have room through the thigh and seat. Third, look at the line in a mirror from the side as well as the front, and check the trousers nip in at the waist and hip and keep the volume in the leg. If all three feel right, the fit is right.

It is also worth knowing that barrel legs are not only for tall women. We have customers at five foot two who love the shape and feel brilliant in it, the key being a rolled hem and a top that shows the waist. The reviews on each product page are genuinely useful here, as customers often note their height and the size they took, which makes choosing online much easier.

Frequently asked questions

Should barrel leg trousers be tight or loose?

Neither, really. They should sit close and neat at the waist and hip, then be loose and roomy through the leg. The fitted points are the waist and hip, and the volume lives in the leg, so if the waist feels loose the trousers are probably too big.

Do you size up or down in barrel leg trousers?

Take your usual size. The room is designed into the leg, so there is no need to size up, and going up tends to leave the waist gaping. If you are between sizes in the cotton denim, take the larger size, as denim can sit very slightly snugger than the twill.

How long should barrel leg trousers be?

Both full length and a rolled hem work. Rolling them to finish just above the ankle breaks up the proportions and stops the shape feeling overwhelming, while full length reads slightly more formal. The Billie is easy to turn up, so you can adjust to your height and your shoes.

Are barrel leg trousers flattering on shorter women?

Yes. They are not only for tall women. Customers at five foot two wear and love them. A rolled hem to show a little ankle and a top tucked in to show the waist keeps the proportions balanced at any height.

What is the difference between the Billie and Emmie fit?

The Billie Barrel Leg Trousers and Jeans are structured one hundred per cent cotton that holds a clean, confident shape. The Emmie Barrel Leg Jeans are a softer, slightly narrower barrel with a touch of elastane for stretch and recovery, so they are the more forgiving, comfortable option. Both are true to your usual size.

Once your barrel legs fit beautifully, the next step is the styling. Our guide to how to style barrel leg trousers covers tops, layers, shoes and proportion, so you can wear them with confidence from the school run to dinner.