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Convert / Leggings

Spanx to lululemon leggings size

The short answer

Spanx XS is lululemon 4 or 6 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 Spanx size read across to lululemon. Letter sizes on the left, US numeric on the right.
SpanxSpanx builds it forlululemon, by chartSame labellululemon builds it forlululemon also prints
XSwaist 25 to 27 in, hip 34 to 36 in4 or 6not publishedwaist 25 in, hip 35 inLetter XS
Swaist 27 to 29 in, hip 36 to 38 in6 or 8not publishedwaist 27 in, hip 37 inLetter S
Mwaist 29 to 31 in, hip 38 to 40 in8 or 10not publishedwaist 29 in, hip 39 inLetter M
Lwaist 31 to 33.5 in, hip 40 to 42.5 in12 or 10not publishedwaist 33 in, hip 43 inLetter XL
XLwaist 33.5 to 36 in, hip 42.5 to 45 in1416waist 35 in, hip 45 inLetter XXL
1Xwaist 36 to 39 in, hip 45 to 48 in16not publishedwaist 38 in, hip 47 innot published
2Xwaist 39 to 42 in, hip 48 to 51 in18not publishedwaist 41 in, hip 49 innot published
3Xwaist 42 to 45 in, hip 51 to 54 in20not publishedwaist 43 in, hip 51 innot 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. 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

lululemon to Spanx