The short answer
- Both are fitted through the hip and thigh. The difference starts at the knee and ends at the hem.
- In our women's cuts, a bootcut grows about 4 inches from knee to hem (14.5 to 18.5). A flare grows about 8 (14 to 22).
- Quick test: if the hem is wider than the thigh, it's a flare. If it's narrower, it's a bootcut.
- Bootcut is built around boots and everyday shoes. Flare is built around a heel or platform, and the hem is measured for it.
- Neither is wrong. Pick by the shoes you wear most and how much hem you want to manage.
Search for either one and you'll find pages that say "a bootcut flares a little, a flare flares a lot." That's true, but it doesn't help much when you're holding a pair and the label says neither. Measurements settle it. Below are the figures for our own two women's cuts, plus a few ways to check any pair you own.
The numbers, in inches
These are our finished-garment figures for a 28" waist, measured around. They are ours, not an industry standard: other brands cut the same names differently, which is why measuring beats trusting a label.
| Measured around | Women's bootcut | Women's flare | What it tells you |
|---|---|---|---|
| Thigh | 20.5 | 20.5 | Identical. Neither cut changes the top half. |
| Knee | 14.5 | 14 | Half an inch apart. Hard to see. |
| Leg opening | 18.5 | 22 | 3.5 inches apart. Easy to see. |
| Growth, knee to hem | +4 | +8 | The flare opens twice as fast. |
| Hem vs thigh | 2 narrower | 1.5 wider | The crossover point between the two. |
The last two rows are simple arithmetic on the figures above. For the men's bootcut at a 32" waist the figures are thigh 23.5, knee 16.5, opening 18.5.
A two-second test for any pair
- Lay the jeans flat and fold them in half lengthwise so the hem sits next to the thigh.
- If the hem is clearly wider than the thigh, it's a flare. If it's a bit narrower, it's a bootcut.
- Check where the widening starts. On a bootcut it's a gentle slope from the knee. On a flare the leg is close-fitting right down past the knee, then kicks out.
That "hem wider than thigh" rule only works because the thigh is the same in both cuts. It won't separate a bootcut from a wide-leg, which is wide all the way down.
Shoes and hem length: this is the real decision
The silhouette difference matters less than what happens at the floor. A bootcut hem is wide enough to go over a boot shaft but narrow enough to look tidy over trainers or flat loafers. A flare hem is wide enough that, in flats, it can bunch, scuff or drag. That's why flares are normally hemmed for the shoe you'll wear most: a hem that skims the floor in heels sits well above it in flats, and the other way round.
| You mostly wear | Lean towards | Why |
|---|---|---|
| Ankle boots, Western boots | Bootcut | The opening clears the shaft without a big flap of fabric. |
| Trainers and flats | Bootcut | A flare in flats needs a shorter hem and loses the effect. |
| Heels, platforms, wedges | Flare | The wide hem balances the shoe and hides it. |
| A mix, no clear favorite | Bootcut | More forgiving when the shoe changes. |
To measure inseam for either, put the shoes on first and follow how to measure your inseam. For how long a hem should be in general, see how long should jeans be. Want styling ideas? How to style flare jeans and how to style bootcut jeans cover outfits.
Build and proportion
Both flatter by balancing a wider lower leg against the hips, so neither is reserved for one body type. Two practical points do shift with build. First, on a very short leg a wide hem can swallow the whole lower leg; a hem that stops cleanly at the shoe helps. Second, on a longer leg a flare has room to show its shape, while a bootcut reads as a straighter line. Our jeans for your proportions guide goes through both.
When neither is the right call
- You want a leg that's wide from the thigh down: that's a wide-leg, not a flare.
- You wear sleek flats and trainers almost every day: a straight leg may suit better.
- You don't want to think about hem length: bootcut forgives more.
Next step: choose one
When you're ready, the women's bootcut page and the women's flare page show each cut with its measurements and options. Looking for men's? See the men's bootcut.
Questions
What is the main difference between bootcut and flare jeans?
How far the leg opens. In our women's cuts the thigh is the same, but a bootcut grows about 4 inches from knee to hem and a flare about 8, ending in a hem wider than the thigh.
Which is better with sneakers?
A bootcut. A flare's wide hem needs height from a heel or platform to look intentional, and it drags in flats unless hemmed short.
Can I wear flare jeans with flat shoes?
Yes, if the hem is cut for flats. A pair hemmed for heels will pool and scuff in flats, so match the inseam to the shoe you wear most.
Are flare and bell-bottom jeans the same?
Close, but not identical. Bell-bottoms usually widen from the knee with a more exaggerated shape; flares are generally fitted a little further down. The names are used loosely, so check the measurements.
Do bootcut jeans fit over boots?
That's what they're designed for: the opening is wide enough to go over a boot shaft. Try your boots on and check the opening clears the top without pulling.