Oysho to Colorfulkoala leggings size

The short answer

Oysho S is Colorfulkoala XS or S by the two brands' own charts. 2 of 7 Oysho sizes land on a different label at Colorfulkoala.

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

Every Oysho size read across to Colorfulkoala. Letter sizes on the left, Letter on the right.
Oysho	Oysho builds it for	Colorfulkoala, by chart	Same label	Colorfulkoala builds it for	Colorfulkoala also prints
XXS	waist 24 to 25 in, hip 36 to 37 in	XXS or XS	XXS	waist 23 to 24 in, hip 32.5 to 33.5 in, inseam 25 in	US numeric 2
XS	waist 25 to 26 in, hip 37 to 38 in	XS	XS	waist 25 to 26 in, hip 34.5 to 35.5 in, inseam 25 in	US numeric 4
S	waist 26 to 27 in, hip 38 to 39 in	XS or S	S	waist 25 to 26 in, hip 34.5 to 35.5 in, inseam 25 in	US numeric 4
M	waist 27 to 29 in, hip 39 to 41 in	S	M	waist 27 to 28 in, hip 36.5 to 37.5 in, inseam 25 in	US numeric 6
L	waist 30 to 33 in, hip 42 to 45 in	L	L	waist 31 to 32 in, hip 40.5 to 41.5 in, inseam 25 in	US numeric 10
XL	waist 33 to 35 in, hip 45 to 47 in	XL	XL	waist 33 to 34 in, hip 42.5 to 43.5 in, inseam 25 in	US numeric 12
XXL	waist 36 to 39 in, hip 48 to 51 in	XXL	XXL	waist 35 to 36 in, hip 44.5 to 45.5 in, inseam 25 in	US numeric 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

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

Colorfulkoala to Oysho