SET Active to Year of Ours leggings size

The short answer

SET Active S is Year of Ours Extra Small by the two brands' own charts. 5 of 5 SET Active sizes land on a different label at Year of Ours.

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

Every SET Active size read across to Year of Ours. Letter sizes on the left, Letter on the right.
SET Active	SET Active builds it for	Year of Ours, by chart	Same label	Year of Ours builds it for	Year of Ours also prints
XS	waist 22 to 24 in	not made	not published	not published	not published
S	waist 25 to 27 in	Extra Small	Small	waist 25 to 26.5 in, hip 35 to 37 in	US numeric 2-4
M	waist 28 to 30 in	Medium	Medium	waist 29 to 32 in, hip 41 to 43 in	US numeric 6-8
L	waist 31 to 33 in	Medium	Large	waist 29 to 32 in, hip 41 to 43 in	US numeric 6-8
XL	waist 34 to 36 in	Large	not published	waist 33 to 35 in, hip 44 to 46 in	US numeric 10-12
XXL	waist 37 to 40 in	Extra Large or 2X	not published	waist 36 to 38 in, hip 47 to 49 in	US numeric 14-16

Tinted rows change label or sit between two sizes. 1 sizes have no counterpart on the Year of Ours 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.

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Sources

SET Active size guide, read on 2026-09-18.
Year of Ours size guide, read on 2026-09-18.

Year of Ours to SET Active