Vanity Fair to Shock Absorber bra size

The short answer

Vanity Fair 34DD is Shock Absorber 34DD by the two brands' own charts.

Cups are counted along each brand's own letter order, and the band is carried across unchanged.

Every Vanity Fair size read across to Shock Absorber. US sizes on the left, UK on the right.
Vanity Fair	Shock Absorber, by chart	Same label	Shock Absorber also prints
34A	34A	not published	US A · EU A · FR A · AU A
34B	34B	not published	US B · EU B · FR B · AU B
34C	34C	not published	US C · EU C · FR C · AU C
34D	34D	not published	US D · EU D · FR D · AU D
34DD	34DD	not published	US DD/E · EU E · FR E · AU DD
34DDD	34E	not published	US DDD/F · EU F · FR F · AU E
34G	34F	not published	US G · EU G · FR G · AU F
34H	34FF	not published	US H · EU H · FR H · AU FF

Neither chart publishes the body each size is built for, so the rows line up the labels. 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

Vanity Fair size guide, read on 2026-09-18.
Shock Absorber size guide, read on 2026-09-18. Shock Absorber on TrueToSize

Shock Absorber to Vanity Fair