SET Active to Marks & Spencer (Goodmove) leggings size

The short answer

SET Active L is Marks & Spencer (Goodmove) 14 by the two brands' own charts.

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 Marks & Spencer (Goodmove). Letter sizes on the left, UK on the right.
SET Active	SET Active builds it for	Marks & Spencer (Goodmove), by chart	Same label	Marks & Spencer (Goodmove) builds it for	Marks & Spencer (Goodmove) also prints
XS	waist 22 to 24 in	6	not published	waist 24 in, hip 33.8 in	US numeric 2 · AU 6
S	waist 25 to 27 in	8	not published	waist 25.5 in, hip 35.5 in	US numeric 4 · AU 8
M	waist 28 to 30 in	12	not published	waist 29.5 in, hip 39.5 in	US numeric 8 · AU 12
L	waist 31 to 33 in	14	not published	waist 31.8 in, hip 41.5 in	US numeric 10 · AU 14
XL	waist 34 to 36 in	16 or 18	not published	waist 34 in, hip 43.3 in	US numeric 12 · AU 16
XXL	waist 37 to 40 in	20	not published	waist 38.5 in, hip 47.5 in	US numeric 16 · AU 20

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

SET Active size guide, read on 2026-09-18.
Marks & Spencer (Goodmove) size guide, read on 2026-09-18.

Marks & Spencer (Goodmove) to SET Active