Universally flattering, airy fit.
Take your regular size. If in between sizes, size down.
Measurements:
Shoulder 12.5" (XS) | 12.1" (S) | 13.3" (M) | 13.6" (L)
Bust — 35" (XS) | 37" (S) | 39" (M) | 41" (L)
Length (CF) — 32" (XS) | 32.8" (S) | 33" (M) | 34" (L)
Length (CB) — 30.5" (XS) | 31.5" (S) | 32" (M) | 32.5" (L)
Plunge depth — 15" (XS) | 15.1" (S) | 15.1" (M) | 15.5" (L)
Kennidy and Kaia are 5' 10" and wearing a size S.