2XU to Athleta leggings size

The short answer

2XU XL is Athleta L by the two brands' own charts. 1 of 6 2XU sizes land on a different label at Athleta.

Both brands publish the body waist each size is cut for, so every row matches a waist, not a tag.

Every 2XU Flex & Fluid Tights size read across to Athleta. Letter sizes on the left, Letter on the right.
2XU Flex & Fluid Tights	2XU builds it for	Athleta, by chart	Same label	Athleta builds it for	Athleta also prints
XXS	waist 23 to 24.5 in, hip 33 to 34.5 in	XXS	XXS	waist 24.3 in, hip 34 in	US numeric 00
XS	waist 25 to 26 in, hip 35 to 36.5 in	XS	XS	waist 25.3 to 26.3 in, hip 35 to 36 in	US numeric 0-2
S	waist 26.5 to 28 in, hip 37 to 38.5 in	S	S	waist 27.3 to 28.3 in, hip 37 to 38 in	US numeric 4-6
M	waist 28.5 to 30 in, hip 39 to 40.5 in	M	M	waist 29.3 to 30.3 in, hip 39 to 40 in	US numeric 8-10
L	waist 30.5 to 32 in, hip 41 to 42.5 in	L or M	L	waist 31.8 to 33.3 in, hip 41.5 to 43 in	US numeric 12-14
XL	waist 32.5 to 34 in, hip 43 to 44.5 in	L	XL	waist 31.8 to 33.3 in, hip 41.5 to 43 in	US numeric 12-14

Tinted rows change label or sit between two sizes. Read from the two charts only; no formula and no averaging.

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.

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Sources

2XU Flex & Fluid Tights size guide, read on 2026-09-18.
Athleta size guide, read on 2026-09-17. Athleta on TrueToSize

Athleta to 2XU