Uniqlo to Oysho leggings size

The short answer

Uniqlo XXL is Oysho XL or XXL by the two brands' own charts. 1 of 7 Uniqlo 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 Uniqlo size read across to Oysho. Letter sizes on the left, Letter on the right.
Uniqlo	Uniqlo builds it for	Oysho, by chart	Same label	Oysho builds it for	Oysho also prints
XXS	waist 22.5 to 24.8 in, hip 32.8 to 35 in	XXS	XXS	waist 24 to 25 in, hip 36 to 37 in	not published
XS	waist 24 to 26.5 in, hip 34.3 to 36.5 in	XS	XS	waist 25 to 26 in, hip 37 to 38 in	not published
S	waist 25.5 to 28 in, hip 35.8 to 38.3 in	S	S	waist 26 to 27 in, hip 38 to 39 in	not published
M	waist 27.3 to 29.5 in, hip 37.5 to 39.8 in	M	M	waist 27 to 29 in, hip 39 to 41 in	not published
L	waist 29.5 to 32 in, hip 39.8 to 42.3 in	L	L	waist 30 to 33 in, hip 42 to 45 in	not published
XL	waist 32 to 34.3 in, hip 42.3 to 44.5 in	XL	XL	waist 33 to 35 in, hip 45 to 47 in	not published
XXL	waist 34.3 to 36.5 in, hip 44.5 to 46.8 in	XL or XXL	XXL	waist 33 to 35 in, hip 45 to 47 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.

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Sources

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

Oysho to Uniqlo