Your bum deserves better than a sizing guess. Grab a soft tape, measure the fullest part of your hips and match it to the chart below. That’s your Nala size. Sitting between two? Keep scrolling. We’ve got the deets for every cut, from full brief to full cheek.
Sizing is based on Nala's own fit-tested range, checked on real bodies by our very own Fit whisperers.
How to measure your hips and waist
You need a soft tape and about 30 seconds. Measure over bare skin or thin fabric for the truest number.
1. Hips. Wrap the tape around the fullest part of your hips and bum. Keep it level all the way around.
2. Waist. Find your natural waist, just above your belly button. Wrap the tape there without pulling tight.
3. Write both down. Match the hip number to the chart first. Waist is your back-up check.
What to do if you're between sizes
Caught between two sizes? Go up for comfort. Your waistband should sit on your hips, not spend the day picking a fight with them.
Two exceptions worth knowing.
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Size down in cheeky, thong and mesh styles. They stretch more, sit lighter, and a size up tends to slide around.
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Size up in high waisted briefs, full briefs, or anything that sits on your natural waist. More coverage means more fabric to work with. You want it to stay put. No digging, no riding up.
Does the style change your size?
Yes, and it's the bit most size guides skip.
|
Style |
Sits where |
Size guidance |
|
High waisted brief |
On or above the natural waist |
Size up if between. See our high waisted undies. |
|
Full brief |
On the natural waist, full bum coverage |
True to hip measurement |
|
Cheeky |
Low on the hips, less coverage |
True to size, or down if between |
|
Thong |
Low, minimal coverage |
Go by hips. Stretch is forgiving. |
|
Mesh |
Depends on cut |
Runs generous. Size down if between. |
How your undies should actually sit
A good pair does its job and shuts up about it. Here's what that means day to day.
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The waistband stays put. No rolling, no digging.
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The legs don't ride up your bum through the day.
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The gusset sits flat against you, not bunched or twisted.
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Coverage matches the style. A brief covers, a cheeky shows a bit, a thong shows more.
If your waistband is leaving marks two hours in, you're a size too small. If the fabric's slack or the leg openings gape, you've gone a size too big. Stretchier styles like our mesh undies feel lighter on the skin, so the real fit test is whether they stay in place when you move.
FAQs
Do I size by hips or waist?
Hips. Waist is your back-up check if the two numbers land on different sizes.
Should I size up in high waisted briefs?
Yes, if you're between sizes. High waisted sits on your natural waist and you want it to stay there without digging.
Will they shrink in the wash?
Not if you wash them cold and skip the dryer. Heat is what wrecks the elastic.
What if the waistband rolls down?
Usually a sign the size is too small, or the style sits higher than your body prefers. Try a size up, or switch to a mid-rise cut.
How do I care for my undies so they keep their shape?
Cold wash, gentle cycle, air dry. A wash bag helps the elastic last.
What if I'm between sizes in mesh?
Size down. Mesh gives more than cotton or modal, and a size up tends to slide.
Do Nala undies run true to size?
Yes, to our chart. Fit-tested in house, no funny business.
How do AU sizes compare to UK, US and EU?
Close but not identical. Check our international sizing conversions for the exact match.
Where’s your bum heading next?
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How to measure your bra size (coming soon)
