Nike to Aerie (OFFLINE) leggings size
The short answer
Nike M is Aerie (OFFLINE) M or L by the two brands' own charts. 0 of 7 Nike sizes land on a different label at Aerie (OFFLINE).
Both brands publish the body waist each size is cut for, so every row matches a waist, not a tag.
| Nike | Nike builds it for | Aerie (OFFLINE), by chart | Same label | Aerie (OFFLINE) builds it for | Aerie (OFFLINE) also prints |
|---|---|---|---|---|---|
| XXS | waist 21.3 to 23.5 in, hip 30.5 to 33 in | XXS | XXS | waist 22.5 to 23.5 in, hip 32 to 33 in | US numeric 000-00 |
| XS | waist 23.5 to 26 in, hip 33 to 35.5 in | XS | XS | waist 24.5 to 25.5 in, hip 34 to 35 in | US numeric 0-2 |
| S | waist 26 to 29 in, hip 35.5 to 38.5 in | S | S | waist 26.5 to 27.5 in, hip 36 to 37 in | US numeric 4-6 |
| M | waist 29 to 31.5 in, hip 38.5 to 41 in | M or L | M | waist 28.5 to 29.5 in, hip 38 to 39 in | US numeric 8-10 |
| L | waist 31.5 to 34.5 in, hip 41 to 44 in | L or XL | L | waist 31 to 32.5 in, hip 40.5 to 42 in | US numeric 12-14 |
| XL | waist 34.5 to 38.5 in, hip 44 to 47 in | XL or XXL | XL | waist 34 to 36 in, hip 43.5 to 45.5 in | US numeric 16-18 |
| XXL | waist 38.5 to 42.5 in, hip 47 to 50 in | XXL | XXL | waist 38 in, hip 47.5 in | US numeric 20 |
| 0X | waist 40 to 43 in, hip 48 to 51 in | not made | not published | not published | not published |
| 1X | waist 43 to 45.5 in, hip 51 to 54 in | not made | not published | not published | not published |
| 2X | waist 45.5 to 49 in, hip 54 to 57 in | not made | not published | not published | not published |
| 3X | waist 49 to 53 in, hip 57 to 61 in | not made | not published | not published | not published |
| 4X | waist 53 to 57 in, hip 61 to 65 in | not made | not published | not published | not published |
What wearers say
Charts describe a garment. People who own both brands describe a fit, and their answer ranks above this table once five of them stand behind it. Pick your size in the converter to see whether there are enough yet.
Sources
- Nike size guide, read on 2026-09-17. Nike on TrueToSize
- Aerie (OFFLINE) size guide, read on 2026-09-18. Aerie (OFFLINE) on TrueToSize