In short: an oversized fit is a cut, not a size. The designer has already added the extra room – a dropped shoulder, a wider body, a longer sleeve – so you order your usual size, never a size down to tame it or a size up to exaggerate it. It should look deliberate: shoulders slightly off the shoulder point, sleeves ending at the wrist, the body skimming rather than swamping. Balance the volume on top with a narrower line below, show a wrist or an ankle, and the oversized fit reads as relaxed elegance instead of bulk.
Last verified: 18 October 2026 · Written by the Lumasana team
What an oversized fit actually is
Oversized, relaxed, loose fit, boyfriend cut – the labels differ, the idea is the same: the garment is cut with more ease than the body needs. A regular blouse has a few centimetres of room across the bust; an oversized fit has ten or more. The shoulder seam is placed beyond the natural shoulder, the armhole is deeper, the body is straighter and the sleeve is often longer so it can be pushed up. That extra room is designed in, which means the garment is graded in your normal size with the volume included. The most misunderstood point about an oversized fit: it is not a regular garment worn a size too big. A regular jumper two sizes up has hanging shoulders and a gaping neckline; a true oversized jumper in your size has volume where it is meant to be and fit where it matters – neck, wrist, hem.
Which size to order for an oversized fit
Your usual size. Our oversized and relaxed pieces are cut true to size with the ease built in, and the fit status on the product page tells you so. Sizing down to make an oversized fit less roomy shortens the sleeves and the body and pulls the dropped shoulder back towards the neck, which looks tight and confused. Sizing up turns deliberate volume into shapelessness. If you fall exactly between two sizes, take the smaller one for knitwear – the knit gives – and the larger one for woven fabrics such as a relaxed blazer or coat. Check two numbers in the centimetre chart: the total length, which decides whether the hem sits at the hip or the thigh, and the sleeve length, which decides whether the sleeve ends at the wrist or has to be pushed up. Our Size guide explains how to read the chart; the Blazer and coat size guide covers relaxed outerwear in detail.
How an oversized fit should sit, piece by piece
Oversized jumpers and turtlenecks
The shoulder seam sits two to five centimetres beyond your shoulder point by design. The neckline stays close – a turtleneck or high neck should hug, not gape. The sleeve ends at the wrist bone or is pushed up to show the wrist; it should never cover the hand. The hem skims the top of the hip or the upper thigh and hangs straight. The body is wide but not so wide that the fabric pools at the waist. For how to wear the knit, see How to style a knit cardigan.
Oversized and relaxed blazers
A relaxed blazer has a slightly extended shoulder and a straighter, longer body. It is worn open or with the top button fastened; it should not look like a jacket borrowed from a taller person, which happens when the sleeve covers the hand or the shoulder extends more than a few centimetres. Push the sleeve up a little to show the wrist and the blouse cuff. Pair it with a fitted top and straight or slim trousers.
Oversized and double-breasted coats
Relaxed coats are cut with layering room: four to eight centimetres of extra width at the bust to take a knit. The shoulder may be slightly extended; the sleeve covers the knit’s sleeve. A relaxed coat looks best worn open over a column of one colour, or belted if it has a belt. It should still close comfortably over your winter layers – if it does not, the size is wrong, not the style.
Loose-fit tees and tunics
A loose tee has a wider body and often a dropped shoulder; half-tuck it into a high waist so the volume is contained. A tunic is longer and worn untucked over slim trousers. In both, neckline and sleeve length should fit; only the width is relaxed.
Styling an oversized fit so it looks intentional
- Volume on top, narrow below. Straight or slim trousers, a pencil or straight midi skirt, or a column dress under an oversized knit or blazer. Two wide pieces together only work when both are very clean-cut and in one colour.
- Show a joint. A wrist, an ankle or the collarbone – one visible narrow point keeps the eye from reading the whole look as bulk. Push sleeves up; choose a 7/8 trouser; wear a slim shoe.
- Define or imply a waist. A half-tuck, a belt over a cardigan or a dress underneath, or simply a fitted layer visible under the open front.
- Keep the colours calm. One colour family makes volume look considered; a riot of colour makes it look like a pile of clothes.
- Mind the proportions for your height. On a petite frame, choose oversized pieces that end at the hip, not the thigh, and show the ankle. On a tall frame, longer oversized coats and jumpers work in your favour.
A half-tucked loose tee with straight trousers from our Trousers, or a relaxed turtleneck from our Cardigans & Jumpers over a midi skirt, are the two easiest places to start.
Oversized fit versus runs large
The fit status on our product pages distinguishes the two. Oversized or relaxed describes the cut; the piece is still true to size and you order your usual size. Runs large describes grading: the piece comes out larger than its label suggests and we advise one size down. The two can coincide – an oversized piece that also runs large – and the fit status tells you what to do in each case. Never guess from the photo alone. European clothing sizes follow EN 13402 (CEN), which defines sizes by body measurements, and an oversized garment is graded from the same body measurements with ease added on top. If the fit is still not right at home, you have 14 days to return it under EU consumer law (Your Europe) – see How to return an order.
Frequently asked questions about the oversized fit
Should I size down for an oversized fit?
No. The extra room is designed into your normal size. Sizing down shortens the sleeves and body and pulls the dropped shoulder back towards the neck, which looks tight rather than relaxed. Order your usual size; between two sizes, take the smaller for knitwear and the larger for woven fabrics.
How do I know if an oversized fit looks intentional or just too big?
Check three points: the neckline fits close, the sleeve ends at the wrist or is pushed up, and the hem hangs straight at the hip or upper thigh. If the neck gapes, the sleeves cover your hands or the fabric pools at the waist, the garment is too big rather than oversized.
Can I wear an oversized fit if I am petite?
Yes. Choose oversized pieces that end at the hip rather than the thigh, show the ankle with a cropped or straight trouser, and push the sleeves up to show the wrist. Keep the colours in one family and the shoe slim. A relaxed knit over a straight midi skirt is a reliable starting point.
What do I wear under an oversized blazer?
A fitted top: a plain T-shirt, a fine knit or a slim blouse, so the blazer is the only voluminous piece. Tuck or half-tuck the top into high-waist straight or slim trousers. Avoid a loose blouse under a relaxed blazer; two loose layers hide the body entirely.
Is oversized the same as runs large?
No. Oversized describes the cut – deliberate extra room in your normal size. Runs large describes grading – the piece comes out bigger than its label, and we advise one size down. The fit status on each product page tells you which applies, and both can apply at once.
How should an oversized coat fit over a jumper?
It should close comfortably over the knit you will wear most, with the sleeve covering the knit sleeve and the shoulder sitting at or slightly beyond your shoulder point. Relaxed coats have that room built in, so order your usual coat size. If it does not close over your layers, the size is wrong, not the style.
Does an oversized fit suit a fuller figure?
Yes, when the proportions are kept: volume on top with a narrower line below, a visible wrist or ankle, and a neckline that fits. A relaxed knit over straight trousers or a column skirt flatters most figures. Avoid oversized pieces that are also very long and very wide at once.

Cardigans & jumpers
Autumn looks
Kaat · Sleeveless tiered maxi dress
Nelleke · Printed long wrap skirt
Dieuwke · Pleated wide-leg culottes
Ymke · Cropped zip jacket with flap pockets


