I'm a woman and have been on a search for wool underwear that fit well, with little success. They all seem to be designed for appearance rather than function...fine if you're a model just standing around, but not so great if you don't want to flash people every time you bend over or have to adjust your underwear every two minutes while hiking or climbing. Out of frustration I finally decided to try some men's underwear, and I'm so glad I did! As with all Smartwool products, the fabric is amazing, and they fit well too. I generally wear a women's large and went with the men's medium, and they're perfect - snug on the legs but still comfy at the waist. If you're worried about panty lines (don't get me started), then these are not for you, but otherwise they're awesome! I really wish Smartwool would make an identical pair, sans fly, for women.