Tina A.wrote a review of SmartWool Microweight 150 Hiphugger Underwear - Women's on August 31, 2011
Wore this for an undisclosed amount of time climbing up Kilimanjaro and they never bunched, stunk, caused any itching or hot spots. A little pricey, but worth it. I bought a medium (my usual size) and it fit perfectly. I'm a little curvy back there so I was surprised when they fit me so well.