Patagonia to Next size

The short answer

Patagonia XXS is Next XS by the two brands' own charts. 3 of 8 Patagonia sizes land on a different label at Next.

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

Every Patagonia size read across to Next. Letter sizes on the left, Letter on the right.
Patagonia	Patagonia builds it for	Next, by chart	Same label	Next builds it for	Next also prints
XXS	chest 33 in, hip 32 in, sleeve 30 in	XS	XXS	chest 33 to 35 in	not published
XS	chest 35 in, hip 34 in, sleeve 32 in	XS	XS	chest 33 to 35 in	not published
S	chest 37 in, hip 36 in, sleeve 33 in	S	S	chest 36 to 38 in	not published
M	chest 40 in, hip 39 in, sleeve 34 in	M	M	chest 39 to 41 in	not published
L	chest 44 in, hip 43 in, sleeve 35 in	L	L	chest 42 to 44 in	not published
XL	chest 47 in, hip 46 in, sleeve 36 in	XL	XL	chest 45 to 47 in	not published
XXL	chest 50 in, hip 49 in, sleeve 37 in	2XL	2XL	chest 48 to 50 in	not published
XXXL	chest 56 in, hip 55 in, sleeve 37.5 in	4XL	3XL	chest 54 to 56 in	not published

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, not a fit. We do not collect fit reports for this category yet, so this table is the two brands' own claims and nothing more.

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Sources

Patagonia size guide, read on 2026-09-18.
Next size guide, read on 2026-09-18.

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