Is there a big difference between Men's and Women's vests? would this be equivalent to a women's medium?
JOHN H I am a tall guy so I have no idea if this is equivalent to a Woman's Medium size. I normally wear a Men's Large shirt. I can say that for me, it has a close body fit. To refill the hydration bladder just about required me to take off the shirt. Depending on certain anatomical size you might be uncomfortable. BUT, because it has such a large volume, a several hour hike up and down a local mountain was not enough to cause me to drink it dry.
So, slow pace (with kids) up a mtn, in 80 F air temp, under shade of trees, over a 4 hour period, and 72 oz was enough to get back to the vehicle where I had more water.
My suggestion is, if you really want to chance something you can't put on, find someone who might want the shirt with/or without the bladder.
ARNOLDO R They run a bit small for men but not uncomfortable. More like compression fit gear so I would size up if you want it a bit more loose
PETER M The fit on thes is very tight. I would guess there is more room is the bust area of the womens version.
PARTS D it fits me fine but I think if a women was to wear it and she has a big chest it would be a problem. for me its snuged around the rib cage area so I tryed to answer the best way i can hope it helps you out
ROBERT S I have the largest size men's Raceback. I will say it runs small size wise, but that said I am large for a bikey (6'2" and 190#). The cut of the vest is probably different on the women's models as the vest should fit snug so as to not flap around while riding.