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Convert / Women's clothing

Under Armour to Boden clothing size

The short answer

Under Armour XXS is Boden 2 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 Under Armour size read across to Boden. Letter sizes on the left, US on the right.
Under ArmourUnder Armour builds it forBoden, by chartSame labelBoden builds it forBoden also prints
XXSbust 31 to 32.5 in, waist 24.5 to 25.5 in2not publishedbust 32 to 33 in, waist 25 to 26 in, hip 34 to 35 inLetter XS
XSbust 32.5 to 33.5 in, waist 25.5 to 27 in2not publishedbust 32 to 33 in, waist 25 to 26 in, hip 34 to 35 inLetter XS
SMbust 33.5 to 36 in, waist 27 to 29 in6not publishedbust 34.3 to 35 in, waist 27.3 to 28 in, hip 36.3 to 37 inLetter S
MDbust 36 to 38 in, waist 29 to 31 in8not publishedbust 35.5 to 37 in, waist 28.5 to 30 in, hip 37.5 to 39 inLetter M
LGbust 38 to 41 in, waist 31 to 34 in12not publishedbust 39.5 to 41 in, waist 32.5 to 34 in, hip 41.5 to 43 inLetter L
XLbust 41 to 44 in, waist 34 to 37 in1416bust 41.5 to 43 in, waist 34.5 to 36 in, hip 43.5 to 45 inLetter L
XXLbust 44 to 47 in, waist 37 to 40 in1818bust 45.5 to 47.5 in, waist 38.5 to 40.5 in, hip 47.5 to 49.5 inLetter XL
3XLbust 47 to 50 in, waist 40 to 43 in18not publishedbust 45.5 to 47.5 in, waist 38.5 to 40.5 in, hip 47.5 to 49.5 inLetter XL
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

Boden to Under Armour