SET Active to adidas leggings size

The short answer

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

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

Every SET Active size read across to adidas. Letter sizes on the left, Letter on the right.
SET Active	SET Active builds it for	adidas, by chart	Same label	adidas builds it for	adidas also prints
XS	waist 22 to 24 in	2XS	XS	waist 22 to 23.5 in, hip 31.5 to 33 in, inseam 30.5 in	US numeric 00
S	waist 25 to 27 in	XS	S	waist 24 to 26 in, hip 33.5 to 35.5 in, inseam 31 in	US numeric 0-2
M	waist 28 to 30 in	M	M	waist 29 to 31 in, hip 38.5 to 40.5 in, inseam 31.5 in	US numeric 8-10
L	waist 31 to 33 in	L	L	waist 31.5 to 33.5 in, hip 41 to 43 in, inseam 31.5 in	US numeric 12-14
XL	waist 34 to 36 in	XL	XL	waist 34 to 37 in, hip 43.5 to 46 in, inseam 31.5 in	US numeric 16-18
XXL	waist 37 to 40 in	2XL	2XL	waist 37.5 to 41 in, hip 46.5 to 49 in, inseam 32 in	US numeric 20

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.

Open in the converter Add an item you own

Sources

SET Active size guide, read on 2026-09-18.
adidas size guide, read on 2026-09-18. adidas on TrueToSize

adidas to SET Active