Sweaty Betty to Alo Yoga leggings size

The short answer

Sweaty Betty XL is Alo Yoga L by the two brands' own charts. 2 of 7 Sweaty Betty sizes land on a different label at Alo Yoga.

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

Every Sweaty Betty size read across to Alo Yoga. Letter sizes on the left, Letter on the right.
Sweaty Betty	Sweaty Betty builds it for	Alo Yoga, by chart	Same label	Alo Yoga builds it for	Alo Yoga also prints
XXS	waist 23 in, hip 34 in	XXS	XXS	waist 23.4 to 24.4 in, hip 33.1 to 34.1 in	US numeric 00-0
XS	waist 25 in, hip 36 in	XS	XS	waist 25 to 26.6 in, hip 34.4 to 36 in	US numeric 2-4
S	waist 27 in, hip 38 in	S	S	waist 27 to 28.5 in, hip 36.4 to 38 in	US numeric 4-6
M	waist 29 in, hip 40 in	M	M	waist 28.9 to 30.5 in, hip 38.6 to 40 in	US numeric 8-10
L	waist 31 in, hip 42 in	L	L	waist 30.9 to 33.5 in, hip 40.6 to 42.5 in	US numeric 12-14
XL	waist 33 in, hip 44 in	L	XL	waist 30.9 to 33.5 in, hip 40.6 to 42.5 in	US numeric 12-14
XXL	waist 36 in, hip 46.5 in	XL	2XL	waist 34.1 to 36.4 in, hip 42.9 to 45.5 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

Sweaty Betty size guide, read on 2026-09-17. Sweaty Betty on TrueToSize
Alo Yoga size guide, read on 2026-09-17. Alo Yoga on TrueToSize

Alo Yoga to Sweaty Betty