Tory Burch to Gap clothing size

The short answer

Tory Burch M is Gap 6 by the two brands' own charts.

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

Every Tory Burch size read across to Gap. Letter sizes on the left, US on the right.
Tory Burch	Tory Burch builds it for	Gap, by chart	Same label	Gap builds it for	Gap also prints
XS	bust 32 in, waist 25 in, hip 36 in	0	not published	bust 32.3 in, waist 25.5 in, hip 35.3 in	Letter XS
S	bust 34 in, waist 26.4 in, hip 37 in	4	not published	bust 34.3 in, waist 27.5 in, hip 37.3 in	Letter S
M	bust 35.4 in, waist 28 in, hip 38.6 in	6	not published	bust 35.3 in, waist 28.5 in, hip 38.3 in	Letter S
L	bust 37.4 in, waist 30 in, hip 40.5 in	10	not published	bust 37.3 in, waist 30.5 in, hip 40.3 in	Letter M
XL	bust 39.4 in, waist 32 in, hip 42.5 in	12 or 14	not published	bust 38.8 in, waist 32 in, hip 41.8 in	Letter L

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

Tory Burch size guide, read on 2026-09-18.
Gap size guide, read on 2026-09-18. Gap on TrueToSize

Gap to Tory Burch