Marks & Spencer (Goodmove) to SET Active leggings size

The short answer

Marks & Spencer (Goodmove) 14 is SET Active L 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 Marks & Spencer (Goodmove) size read across to SET Active. UK sizes on the left, Letter on the right.
Marks & Spencer (Goodmove)	Marks & Spencer (Goodmove) builds it for	SET Active, by chart	Same label	SET Active builds it for	SET Active also prints
6	waist 24 in, hip 33.8 in	XS	not published	waist 22 to 24 in	US numeric 00-4
8	waist 25.5 in, hip 35.5 in	S	not published	waist 25 to 27 in	US numeric 4-6
10	waist 27.5 in, hip 37.5 in	S or M	not published	waist 25 to 27 in	US numeric 4-6
12	waist 29.5 in, hip 39.5 in	M	not published	waist 28 to 30 in	US numeric 8-10
14	waist 31.8 in, hip 41.5 in	L	not published	waist 31 to 33 in	US numeric 12-14
16	waist 34 in, hip 43.3 in	XL	not published	waist 34 to 36 in	US numeric 16-18
18	waist 36.3 in, hip 45.3 in	XL	not published	waist 34 to 36 in	US numeric 16-18
20	waist 38.5 in, hip 47.5 in	XXL	not published	waist 37 to 40 in	US numeric 20-22
22	waist 41 in, hip 50 in	XXL	not published	waist 37 to 40 in	US numeric 20-22
24	waist 43.3 in, hip 52.5 in	not made	not published	not published	not published

Tinted rows change label or sit between two sizes. 1 sizes have no counterpart on the SET Active 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

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

SET Active to Marks & Spencer (Goodmove)