Michele B wrote a review of ExOfficio Give-N-Go Bikini Brief - Women's on April 13, 2013
I am 5'4" 130 lbs and I found the M too tight so I ordered the L and found it much more comfortable. I normally take a M in everything so this was quite a surprise for me. Either size fits, I just prefer a little more room and the M was tight on the legs. Comfortable and breaths OK, but it is not earth shattering and you still sweat and it still gets damp. I think they are as sexy as they are functional which is nice. Haven't tried handwashing them and drying but it looks like it'd be fine to dry overnight.