I have a Fox chest protector, can't see a size listed, but think it was just a Men's Small, fits fine, but with a tight jogbra one would hardly guess I'm a girl...so may not work for more endowed women.
Absolutely find something that works and wear one tho - mine has a big diagonal gash from where I hit and slid along a metal guardrail at the Washougal Gran Prix a year ago...didn't hurt me at all, scared the bystanders! CJ gave me a Moose sticker for a cp bandaid. :-0
-Susan
BBR230