What size is a 6 in Lululemon?

Roughly a US small to small-medium. Lululemon 4 maps near small, 8 near medium. Check the waist and hip measurements on the product size chart, since fit varies by style.

Do Lululemon leggings run small?

Aligns fit true to size for most owners. Compressive styles like Wunder Train run snug by design, and sizing up is the common advice when between sizes.

How do I find the size of Lululemon leggings I already own?

Check inside the waistband pocket for a small dot printed with a number. That dot is the size marker once the original tag is gone.

Can I exchange if the size is wrong?

Unworn items with tags can be returned or exchanged within 30 days. Keep the tags on until you have tried the fit.

Lululemon Sizing, Explained | The Golden Settle

Lululemon sizes leggings with numbers, 0 through 20 on most styles, while nearly every competitor uses letters. Add fabrics that stretch differently and a no-tag design that hides the size once you own them, and the brand’s sizing questions practically write themselves. Here’s the short version that saves a return.

The number system, decoded

A lululemon 4 corresponds roughly to a US small, a 6 to a small-medium, an 8 to a medium. If you know your Gap or Old Navy letter size, the mapping is close enough to start from. The size chart on each product page lists waist and hip measurements, and measuring yourself once beats guessing twice. Your size can also differ between styles, which is normal here rather than a defect.

Which styles run small

The owner consensus is consistent. Align leggings fit true to size, with a choice when you’re between sizes: up for a relaxed everyday fit, down for a more athletic one. Compressive styles, Wunder Train chief among them, run snugger by design, and the common advice is to size up if you’re in doubt, accepting slightly less compression. Sports bras run small more often than leggings do.

The dot trick

Owned pairs lose their size tags fast. Look inside the small pocket sewn into the waistband: a tiny dot with a number marks the size. It’s the answer to the most-asked question in every lululemon resale thread.

Buying online without a return trip

Order your measured size in Aligns, size up in compression when torn, and remember returns run 30 days on unworn items with tags. If sizing anxiety is the thing keeping you from trying the category at all, it’s worth knowing Quince’s simpler letter sizing and Athleta’s petite and tall lengths, which we compared in Lululemon vs. Athleta, both remove guesswork for different reasons.

And before any of it, make sure the legging fabric suits the workout you’re buying it for. The fabric guide is the two-minute read that prevents the wrong purchase entirely.

Frequently asked

What size is a 6 in Lululemon?: Roughly a US small to small-medium. Lululemon 4 maps near small, 8 near medium. Check the waist and hip measurements on the product size chart, since fit varies by style.
Do Lululemon leggings run small?: Aligns fit true to size for most owners. Compressive styles like Wunder Train run snug by design, and sizing up is the common advice when between sizes.
How do I find the size of Lululemon leggings I already own?: Check inside the waistband pocket for a small dot printed with a number. That dot is the size marker once the original tag is gone.
Can I exchange if the size is wrong?: Unworn items with tags can be returned or exchanged within 30 days. Keep the tags on until you have tried the fit.