SET Active to Lorna Jane leggings size

The short answer

SET Active S is Lorna Jane XXS by the two brands' own charts. 3 of 5 SET Active sizes land on a different label at Lorna Jane.

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

On 1 sizes the charts land two or more sizes from the same label. Brands do not measure the body the same way, so on those rows treat the chart answer and the same label as the two ends of a range.

Every SET Active size read across to Lorna Jane. Letter sizes on the left, Letter on the right.
SET Active	SET Active builds it for	Lorna Jane, by chart	Same label	Lorna Jane builds it for	Lorna Jane also prints
XS	waist 22 to 24 in	not made	XS	not published	not published
S	waist 25 to 27 in	XXS	S	waist 25.6 in, hip 31.5 in	US numeric 2
M	waist 28 to 30 in	S	M	waist 29.5 in, hip 39.4 in	US numeric 6
L	waist 31 to 33 in	M	L	waist 31.5 in, hip 43.3 in	US numeric 8
XL	waist 34 to 36 in	XL	XL	waist 35.4 in, hip 51.2 in	US numeric 12
XXL	waist 37 to 40 in	XXL	XXL	waist 37.4 in, hip 55.1 in	US numeric 14

Tinted rows change label or sit between two sizes. 1 sizes have no counterpart on the Lorna Jane chart. 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.
Lorna Jane size guide, read on 2026-09-18.

Lorna Jane to SET Active