2XU to SET Active leggings size

The short answer

2XU XXS is SET Active XS by the two brands' own charts. 3 of 6 2XU sizes land on a different label at SET Active.

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 SET Active. Letter sizes on the left, Letter on the right.
2XU Flex & Fluid Tights	2XU builds it for	SET Active, by chart	Same label	SET Active builds it for	SET Active also prints
XXS	waist 23 to 24.5 in, hip 33 to 34.5 in	XS	not published	waist 22 to 24 in	US numeric 00-4
XS	waist 25 to 26 in, hip 35 to 36.5 in	S	XS	waist 25 to 27 in	US numeric 4-6
S	waist 26.5 to 28 in, hip 37 to 38.5 in	S	S	waist 25 to 27 in	US numeric 4-6
M	waist 28.5 to 30 in, hip 39 to 40.5 in	M	M	waist 28 to 30 in	US numeric 8-10
L	waist 30.5 to 32 in, hip 41 to 42.5 in	L	L	waist 31 to 33 in	US numeric 12-14
XL	waist 32.5 to 34 in, hip 43 to 44.5 in	L	XL	waist 31 to 33 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.
SET Active size guide, read on 2026-09-18.

SET Active to 2XU