Alphalete to Gymshark leggings size

The short answer

Alphalete 2XS is Gymshark XXS by the two brands' own charts. 2 of 7 Alphalete sizes land on a different label at Gymshark.

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

Every Alphalete size read across to Gymshark. Letter sizes on the left, Letter on the right.
Alphalete	Alphalete builds it for	Gymshark, by chart	Same label	Gymshark builds it for	Gymshark also prints
2XS	waist 23 to 24 in, hip 33 to 34 in	XXS	XXS	waist 24 in, hip 35.5 in	US numeric 2-4
XS	waist 25 to 26 in, hip 35 to 36 in	XS	XS	waist 26 in, hip 37.5 in	US numeric 4-6
S	waist 27 to 28 in, hip 37 to 38 in	S	S	waist 28 in, hip 39.5 in	US numeric 6-8
M	waist 29 to 30 in, hip 39 to 40 in	M	M	waist 30 in, hip 41.5 in	US numeric 8-10
L	waist 31 to 32 in, hip 41 to 42 in	L	L	waist 32 in, hip 43.5 in	US numeric 10-12
XL	waist 33 to 34 in, hip 43 to 44 in	XL	XL	waist 34 in, hip 45.5 in	US numeric 12-14
2XL	waist 35 to 36 in, hip 45 to 46 in	XXL	XXL	waist 36 in, hip 47.7 in	US numeric 14-16

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

Alphalete size guide, read on 2026-09-18. Alphalete on TrueToSize
Gymshark size guide, read on 2026-09-17. Gymshark on TrueToSize

Gymshark to Alphalete