Invention: Padded Bra
Inventor: D.J. Kennedy, G.B.
Year: 1929
How Invented: Learning that in the 1928 Oslo, Norway, Olympics, Sweden's foremost female athlete, Lois Lung, had lost the women's 400-meter hurdle when her knee had hit one breast on the last barrier and brought her writhing to the cinder path in pain, Kennedy conceived of a protective or padded brassiere.
Source here.