I agree. I'm 40 & just started riding maybe 2 1/2 years ago. I've actually lost about 30 lbs riding with dh. He's pretty bike ninja but I don't mind. I'm not the best cyclist but I'm certainly not the worst either & we have fun going out together. My biggest tip is to get a good bike fitting, then just have fun.

I dunno about breathable ... I'm a silly girly girl & I like to rock a push up VS sports bra. Again, have fun!