SET Active to Oysho leggings size

The short answer

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

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 Oysho. Letter sizes on the left, Letter on the right.
SET Active	SET Active builds it for	Oysho, by chart	Same label	Oysho builds it for	Oysho also prints
XS	waist 22 to 24 in	XXS	XS	waist 24 to 25 in, hip 36 to 37 in	not published
S	waist 25 to 27 in	XS	S	waist 25 to 26 in, hip 37 to 38 in	not published
M	waist 28 to 30 in	M	M	waist 27 to 29 in, hip 39 to 41 in	not published
L	waist 31 to 33 in	L	L	waist 30 to 33 in, hip 42 to 45 in	not published
XL	waist 34 to 36 in	XL	XL	waist 33 to 35 in, hip 45 to 47 in	not published
XXL	waist 37 to 40 in	XXL	XXL	waist 36 to 39 in, hip 48 to 51 in	not published

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.
Oysho size guide, read on 2026-09-18. Oysho on TrueToSize

Oysho to SET Active