Tracksmith to adidas leggings size

The short answer

Tracksmith S is adidas XS by the two brands' own charts. 5 of 6 Tracksmith 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 Tracksmith Women's Strata Short Tights size read across to adidas. Letter sizes on the left, Letter on the right.
Tracksmith Women's Strata Short Tights	Tracksmith builds it for	adidas, by chart	Same label	adidas builds it for	adidas also prints
XS	waist 23 to 25 in, hip 32 to 34 in	XS	XS	waist 24 to 26 in, hip 33.5 to 35.5 in, inseam 31 in	US numeric 0-2
S	waist 25 to 27 in, hip 34 to 36 in	XS	S	waist 24 to 26 in, hip 33.5 to 35.5 in, inseam 31 in	US numeric 0-2
M	waist 27 to 29 in, hip 36 to 38 in	S	M	waist 26.5 to 28.5 in, hip 36 to 38 in, inseam 31 in	US numeric 4-6
L	waist 29 to 31 in, hip 38 to 40 in	M	L	waist 29 to 31 in, hip 38.5 to 40.5 in, inseam 31.5 in	US numeric 8-10
XL	waist 31 to 33 in, hip 40 to 42 in	L	XL	waist 31.5 to 33.5 in, hip 41 to 43 in, inseam 31.5 in	US numeric 12-14
XXL	waist 33 to 35 in, hip 42 to 44 in	XL	2XL	waist 34 to 37 in, hip 43.5 to 46 in, inseam 31.5 in	US numeric 16-18

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

Tracksmith Women's Strata Short Tights size guide, read on 2026-09-18.
adidas size guide, read on 2026-09-18. adidas on TrueToSize

adidas to Tracksmith